Amazon Refund Delayed for iRobot Roomba 105

I purchased an iRobot Roomba 105 robot vacuum through Amazon.com.tr and returned the product. Amazon received the returned product on July 18. However, despite more than a month having passed and me continuing to make the installment payments every month, the refund of approximately $206 has still not been credited back to my card.

Even though I have contacted customer service multiple times, I feel that I am being given different excuses and delayed each time. I have been told things such as the incident report title being incomplete or a digit being missing from the code, even though these codes are provided by Amazon themselves. This situation gives me the impression that the refund process is being unnecessarily prolonged and that my money is being held without justification.

I have fulfilled all of my responsibilities and returned the product on time, while also continuing to make my installment payments. Despite this, I do not accept that my refund has still not been processed. I request that Amazon immediately complete my refund process and credit the full $206 refund to my card as soon as possible.