Unauthorised debit orders

My contract expired on the 25th of April, i couldn't cancel the contract until the 4th of May, not to mention the 2 hours waiting on hold to get hold of them. i also went to the MTN building in rivonia road to cancel my contract but nothing. when it came the 4th of May 2021 i finally got hold of a consultant to a consultant, by the name of gcimile mathaba, he said that he sent a request to cancel my contract i was stress free until the 25th of April when a frustrating amount of R536 went off... i phoned back MTN on the 25th and then they mentioned that my contract was not cancelled, and refund request was going to be sent through, it now the 7th of May 2021 and i am still waiting. really goes to show MTN does not care, they take unauthorised debit orders and then expect us to have patience when getting the money back. Retentions hub is terrible when it comes to service... the waiting periods are ridiculously long and our queries doesn't get tended to on time. it ridiculous