Iyzico's Amazon Prime Scam: Stuck with Unwanted Charges

Despite the fact that I canceled my Amazon subscription, I am still being charged 39 Turkish Lira each month on my card as part of my Iyzico Amazon Prime membership. I was under the impression that canceling my membership would stop these charges, but it hasn't worked out that way. I am in desperate need of assistance to figure out how to put an end to it. On the Amazon website, there is a spot to sign up, but there is no option to cancel the membership once it has been activated. It's disheartening to see the money I've worked so hard for go to waste over the course of three months. I demand that the money be refunded to my credit card as soon as possible.