Contract Cancellation Nightmare

I've never resorted to hellopeter before, but this has become infuriating. I cancelled my contract on 04 May 2023 when I was on a month-to-month contract. A representative called me to process the cancellation and I presumed that was the end of it. June '23 I get another invoice and don't pay it because my contract has been cancelled. I then get another invoice in June '23 which I presume is for penalties and ignore it as well. July '23 my account then gets debited. I call and get their retentions number and this number goes into a queue because I hear hold music, then I hear nothing. I've done this 3 times already to no avail. I emailed their "Customer Support" info email MULTIPLE times and have no help whatsoever. I'm STILL trying to get this contract cancelled deposit having spoken to a representative of the company.