Google Play Refund Marked Complete but Money Never Arrived

I am unable to receive a refund for my Super Duolingo subscription purchased through Google Play. After the 7-day free trial ended, an automatic charge of approximately $25 was made to my Yapı Kredi debit card on September 15. I canceled the subscription and requested a refund on the same day.

On September 16, I received an email confirming that my refund had been approved, and the Google Play screen also shows “Refunded” for the Super Duolingo subscription, which was charged at 1,209.99 TL. The email I received also contains the order/transaction record with the number GPA.3331-7903-4328-59756.0. However, the Google Payments Center shows a receipt stating that 1,008.33 TL was refunded for the same transaction dated September 15. Despite several days having passed, no refund has been credited to my Yapı Kredi debit card account, and I cannot see any such transaction in my bank account activity.

Although both the Google Play screen, the email sent to me, and the Google Payments receipt state that the refund was issued, I have still not received the money. I request that Google verify the exact date, amount, and transaction/reference number under which the refund was sent to my bank, and that the full amount of 1,209.99 TL that was originally charged to my card, approximately $25, be credited to my Yapı Kredi account without further delay.