KOS BOOSTER on a credit card, debit card, or bank statement may be connected to a game booster or upgrade, but it could also involve a purchase from the KOS nutrition brand. The exact merchant behind this descriptor has not been confirmed through a current official billing source.
Do not assume the charge is fraudulent or that it belongs to a particular game based only on the words KOS BOOSTER. Check the complete statement description, purchase amount, app-store histories, game accounts, email receipts, and authorized card users first.
What Is KOS BOOSTER Charge?
KOS BOOSTER appears to describe a product or digital add-on rather than clearly identifying the legal merchant that processed the payment.
A possible explanation is a gaming purchase involving:
- A booster or enhancement
- A game upgrade
- A booster pack or card pack
- Extra lives, energy, speed, or power
- Coins, gems, tokens, or other virtual currency
- A limited-time bundle
- Premium or ad-free access
- A season pass or membership benefit
This is a possible category of purchase, not a confirmed identification. The descriptor alone does not reveal the game title, developer, player account, device, or person who made the purchase.
Could KOS BOOSTER Be From a Game?
Yes, a game purchase is plausible. Historical public material documents a mobile title called KOS Trading Card Game, also known as Keepers of the Sin. It was described as an iOS and Android strategy card game, and design material for the game included booster packs.
That historical connection does not prove that a current KOS BOOSTER bank charge belongs to KOS Trading Card Game. No current official billing page, active store listing, developer support page, or descriptor directory was found that confirms the connection.
The charge could instead involve another game, gaming seller, payment processor, product abbreviation, or unrelated merchant using KOS or BOOSTER in its billing information.
Could KOS BOOSTER Be a KOS.com Nutrition Purchase?
Another possibility is an order from KOS, an active plant-based nutrition and supplement brand. The official KOS website sells protein powders, superfood powders, beetroot products, energy blends, and subscriptions. One current energy product uses the flavor name Boostberry.
KOS.com does not appear to publish an official bank-statement descriptor showing KOS BOOSTER. Therefore, the shared words are not enough to confirm the connection.
Check this possibility if the amount matches a nutrition order, someone in the household buys protein or superfood products, or a KOS delivery recently arrived. Review your email, KOS account, delivery records, and card details for a matching order.
Visit the official KOS nutrition website.
What Is Confirmed, Possible, and Unknown?
- Confirmed: “Booster” is commonly used in games for paid enhancements, content packs, virtual items, or temporary benefits. KOS is also the name of an active nutrition brand.
- Possible: KOS BOOSTER may be a one-time in-game purchase, upgrade, booster pack, game-currency purchase, or digital bundle.
- Possible: The charge may involve a KOS nutrition product, energy blend, or recurring product delivery.
- Possible but unconfirmed: The initials KOS could relate to KOS Trading Card Game or another title using the same abbreviation.
- Unknown: The legal merchant, developer, billing processor, refund policy, and whether the payment is recurring cannot be determined from the descriptor alone.
- Unverified consumer explanation: A child, family member, or other authorized device user may have purchased an upgrade without the cardholder recognizing the statement name.
Common KOS BOOSTER Statement Variations
The wording may vary by bank or processor. Preserve the exact version you see, which could include:
- KOS BOOSTER
- KOS*BOOSTER
- KOS BOOSTER PURCHASE
- KOS BOOSTER GAME
- KOS GAME BOOSTER
- CHECKCARD KOS BOOSTER
- CHKCARD KOS BOOSTER
- POS DEBIT KOS BOOSTER
- PENDING KOS BOOSTER
- KOS BOOSTER plus a city, country, telephone number, or website
Only treat a variation as connected when it actually appears on a statement or merchant record. Do not rely on a guessed phone number or company address.
How to Identify the KOS BOOSTER Payment
1. Record the Complete Descriptor
Write down the full statement wording, amount, transaction date, posting date, currency, location, telephone number, and website. A shortened online-banking display may omit information available in the complete merchant record.
2. Ask Family Members and Device Users
Ask anyone with access to the card, phone, tablet, computer, game console, Apple Account, Google Account, or game account about recent boosters, upgrades, card packs, premium access, or virtual currency.
Do not ask only whether they recognize “KOS.” The item name inside a game may be more familiar than the statement descriptor.
3. Check KOS.com Orders and Deliveries
If anyone in the household uses KOS protein, superfood, beetroot, energy, or supplement products, search email for KOS receipts and shipping notices. Compare the exact amount and date with KOS account orders and recent deliveries.
Do not use KOS nutrition contact information for a gaming charge unless an order or receipt first confirms the connection.
4. Check Apple Purchase History
Review every Apple Account used by the household. Apple allows users to search purchase history by the charged amount. Check for a game, app, in-app purchase, or grouped transaction matching the date and total.
View Apple purchase-history instructions.
5. Check Google Play Order History
Review every Google Account used on Android devices. Google says normal Google Play statement charges begin with GOOGLE* followed by an app, developer, or content name. Therefore, an entry showing only KOS BOOSTER should not automatically be called a Google Play charge.
Review Google’s unrecognized-charge guidance.
6. Review Games and Gaming Platforms
Check recently used mobile games, computer games, game consoles, browser games, and card-game accounts. Look at:
- Purchase and transaction history
- Recently added virtual currency
- Inventory, booster packs, and content bundles
- Upgrades, season passes, or premium status
- Saved cards and digital wallets
- Child and family accounts
7. Search Email and Messages
Search all likely email accounts for KOS, KOS.com, booster, Boostberry, protein, superfood, game booster, upgrade, purchase, receipt, order, shipment, coins, gems, bundle, Apple, Google Play, and the exact amount.
8. Ask the Card Issuer for Merchant Details
If no purchase history explains the payment, ask the bank or card issuer for:
- The complete merchant descriptor
- The merchant’s legal or doing-business-as name
- The merchant category code
- The merchant country and contact information
- The payment processor
- Whether the transaction was card-present or online
- Whether it was marked recurring
- Any associated digital-wallet token
Does KOS BOOSTER Mean Apple or Google Play?
Not by itself. Standard Google Play charges begin with GOOGLE*. Apple-billed purchases generally appear with Apple-related wording on the financial statement, even though the individual purchase history may show the specific game or item.
If the statement shows only KOS BOOSTER, the payment may have been processed directly by a developer, gaming website, digital-goods merchant, or another processor. Use the bank’s complete merchant record to identify that party.
Is KOS BOOSTER a Subscription?
There is not enough evidence to say. A game booster is often a one-time purchase, but some games sell recurring memberships, passes, or monthly benefit packages. KOS.com also offers recurring product deliveries.
Look for:
- The same amount repeating weekly or monthly
- A renewal date in Apple or Google subscriptions
- A game membership or season pass
- A repeating KOS nutrition order or product delivery
- Receipt wording such as subscription, renewal, membership, or recurring
- A recurring-payment indicator from the card issuer
Deleting a game or app does not necessarily cancel a subscription. Cancel through the platform or merchant that actually manages the billing.
How to Request a Cancellation or Refund
The correct refund route depends on where the payment appears:
- Apple purchase history: Use Apple’s official refund-request instructions. Eligibility is not guaranteed.
- Google Play order history: Use Google’s official Play support and refund process.
- Game or developer account: Use contact information shown inside the verified account, official app listing, receipt, or website.
- Verified KOS.com nutrition order: Manage the order or subscription through the official KOS account and use the support information on KOS.com. The official site currently lists hello@kos.com, but use it only after matching the charge to a KOS order.
- Direct card charge with no identifiable merchant: Ask the issuer for the merchant’s verified contact information before contacting anyone.
A consumed booster, opened digital pack, delivered virtual currency, or used upgrade may have different refund eligibility from an unused purchase. Do not invent a KOS BOOSTER support number or rely on numbers posted in advertisements or comments.
What to Do If the Charge Was Unauthorized
- Confirm that the charge is posted rather than a temporary authorization.
- Check every relevant app store, gaming account, email account, and authorized user.
- Change passwords and enable two-factor authentication if a gaming, Apple, Google, email, or payment account may have been accessed.
- Remove the saved card from compromised or unfamiliar accounts.
- Contact the card issuer using the number on the back of the card.
- Ask whether the card should be locked or replaced.
- Dispute the transaction if nobody authorized it and no legitimate purchase can be found.
- Monitor for additional small gaming or digital-goods transactions.
Credit-Card Disputes
The Consumer Financial Protection Bureau advises contacting the card issuer immediately. To protect federal billing-error rights, it also advises sending a written billing-error notice within 60 calendar days after the charge appeared on the statement. See the CFPB credit-card dispute guidance.
Debit-Card and Bank-Account Disputes
Report unauthorized debit-card and electronic transactions promptly because the applicable protections can depend on how quickly the problem is reported. See the CFPB guidance for unauthorized bank transactions.
For additional steps, review how to investigate an unrecognized charge.
Fake Support Warning
Do not call a number merely because it appears in a search advertisement, forum comment, social-media message, or unofficial charge-identification page. A fake support agent may ask for:
- Your complete card number
- Your card security code or PIN
- An Apple or Google password
- A one-time verification code
- Remote access to your phone or computer
- Another payment to release a refund
- Gift cards or cryptocurrency
Use contact details from the verified purchase history, official platform, app-store listing, or your financial institution.
Consumer Reports and Experiences
Because the merchant remains unclear, reader reports may help establish whether KOS BOOSTER is consistently connected to a particular game, booster pack, upgrade, payment processor, nutrition order, or unrelated product.
If you identified the charge, share the complete descriptor, amount, device or platform, whether it was one-time or recurring, and the game or product involved. Do not post your full card number, bank information, Apple or Google login, game-account credentials, child’s name, receipt number, or security codes.
Frequently Asked Questions
What is KOS BOOSTER on my credit card?
It may be a game booster, upgrade, card pack, virtual item, or a KOS nutrition order. The exact merchant has not been confirmed, so check the complete merchant record, purchase histories, receipts, and deliveries before assigning it to a particular company or game.
Is KOS BOOSTER from a mobile game?
That is possible but not confirmed. Historical material shows a KOS Trading Card Game with booster packs, but no current official billing evidence connects that game to this exact descriptor.
Could KOS BOOSTER be a KOS nutrition order?
Possibly. KOS is an active plant-based nutrition brand that sells products and recurring deliveries. However, its official website does not confirm that KOS BOOSTER is its statement descriptor. Match the charge with an order, receipt, account, or delivery before making the connection.
Could a child have made the purchase?
Yes. Check family payment settings, child accounts, shared devices, app-store purchase histories, gaming accounts, and recent virtual items. Ask about the item purchased rather than only the unfamiliar statement name.
Is KOS BOOSTER a recurring charge?
It could be one-time or recurring. Check whether the same amount repeats and whether Apple, Google, the game account, KOS account, or the issuer identifies a subscription or recurring-payment instruction.
Should I dispute KOS BOOSTER?
First check the full descriptor, app stores, gaming accounts, KOS orders, email receipts, deliveries, and authorized users. Dispute it promptly if no legitimate or authorized purchase explains the posted charge.
Related Gaming and Digital-Purchase Charges
Disclaimer
ChargeOnMyCard.com is an independent consumer-information website and is not affiliated with KOS.com, KOS Trading Card Game, Apple, Google, any game developer, payment processor, bank, or card issuer. The KOS BOOSTER merchant connection is currently unconfirmed. Verify the specific transaction through purchase records and your financial institution.