PixTuner Charged Me Repeatedly for a Subscription I Never Used

I am writing regarding unauthorized charges made to my account for a service shown on my bank transactions as “appsmk*pixtuner.” I do not have this app, have never used it, and did not knowingly subscribe to any related service. Despite this, my account was charged on 13 May, 5 June and 4 July with increasing amounts, which is completely unacceptable to me. At the beginning of May, before the later charges were taken, I sent an email from my address amira.h***[email protected] requesting cancellation of any subscription in my name and a refund of the amount that had been taken. Even after that written request in May, further charges were taken from my account in June and again today, although I had clearly asked for cancellation and a refund. My bank has only been able to tell me that the payments are connected to my wallet, but I still have no account with you that I actively created or used. I request a full refund of all amounts charged to my account on 13 May, 5 June and 4 July, the immediate cancellation of any subscription or recurring payment linked to my details, and written confirmation of the actions taken. I also ask that you update my bank and any relevant payment provider to prevent any future charges without my clear consent. I expect this situation to be resolved promptly.