I took "The 101 pro" which runs on unlimited 100Mps/40Mps, paying R1025 per month, but when it came to after the 20th, the wifi would buffer

I took "The 101 pro" which runs on unlimited 100Mps/40Mps, paying R1025 per month, but when it came to after the 20th, the wifi would buffer. I cancelled my subscription with *** on 23 September. They however still debited my account with R1025 on 3 October. I was assured my subscription was cancelled by Leila the billing agent. I have been requesting my refund ***, which was promised to me within 7 - 10 working days. At end October I decided to transfer all my funds in my account to my savings account, as I had a feeling they would try to debit again, which they did, leaving me with unsuccessful debit cgarges from my bank, as they have been trying to debit everyday since end October. I also have not received my refund of R1025 to date.