Avast Auto-Billing Bypasses Cancellation Status on Ziraat Bank Debit Card

I previously purchased a 42 TRY subscription through Avast using my debit card linked to my Ziraat Bank account, and subsequently cancelled this subscription. Despite this, I noticed on July 11 that an unauthorized deduction of 599 TRY was made from my Ziraat debit card on behalf of Avast, completely without my permission or consent.

Because Avast lacks live customer support, I struggled to submit a refund request and have received no reimbursement. I absolutely do not accept such a high amount being drawn from my card despite my subscription having been cancelled, and I cannot understand how my bank allowed this transaction to proceed without informing me.

I demand that Ziraat Bank investigate this unauthorized 599 TRY transaction executed on July 11 from my card ending in 6331, ensure a full refund of this amount to me, and implement necessary security checks to protect against such unauthorized deductions.