Garanti BBVA Credit Card Billed $240 for Unauthorized Anthropic Claude Charge

On August 11, 2026, at 19:32, I received an SMS notification stating that an unauthorized transaction of $240 was processed on my Garanti BBVA credit card under the merchant name "anthropıc* claude su". This transaction was executed entirely without my knowledge, consent, or authorization.

Upon receiving the alert, I immediately contacted Garanti BBVA customer service to report the fraudulent activity and formally filed a transaction dispute. Despite my immediate notification, the $240 charge remains posted to my account as an active balance. Furthermore, the bank has failed to provide any explanation as to how my card details were compromised or how this transaction bypassed payment security protocols.

Holding a customer liable for unverified, fraudulent charges after immediate notification violates standard financial security protocols and credit card billing guidelines.

I demand that Garanti BBVA immediately cancel this unauthorized transaction, remove the $240 debt from my statement, secure my account against further breaches, and provide a formal written explanation regarding the resolution of this fraud dispute.