PDFSimpli Charged 627 TL Without Consent After Paying 14.75 TL – Where Is the Recourse?

I paid ₺14.75 on the website PDFSimpli.com for a PDF editing service. However, an additional ₺627 was withdrawn from my account without my permission or approval. There's no official platform or forum available for me to raise this issue or seek help.

This is clearly an unauthorized charge by PDFSimpli, and I demand an immediate refund. As a consumer, I have no way to resolve this directly on the site and urgently need guidance and support. I expect my money to be returned promptly.