Bad Service from MTN

I have the following 3 complaints against MTN in regards to my contract phone which is the following:

1. I went to the Cavendish MTN Store to advise them that I would like to cancel my contract when it ends at the end of April 2024 and will not renew it. They advised me to phone the Contact Centre which I did. I spoke to a Agent on the 27th of March 2024 and he advised that he is canceling my contract and he confirmed that April 2024 will be the last month that a debit order deduction will go off in my bank account. My complaint is that the debit order was not cancelled and on the 31st of May and 30 June 2024 the contract amount of R575.23 was deducted from my account. I had to reverse these amounts and get charged, bank charges as I was not able to get help from the MTN Call Centre. Instead I got communication that they will double deduct at the end of July 2024.

2. I discovered when I was going through my statements that I was also being charged an Insurance for the amount of R122.81 per month for the contract period. My complaint is that I never took out insurance with MTN. The insurance I had was with Outsurance. When my phone was reported as ****** last year October 2023, my sim card was suspended and hand set black listed but MTN said nothing about me having an insurance with them. I would like MTN to refund me the Insurance Premiums I was charged for the contract period from May 2021 to April 2025 as I never took up insurance with MTN.

3. After phoning the MTN Call Centre many times, I wrote a complaint email to "***" on the 24th of June 2024 and today is the 24th of July 2024 but nobody has responded to my email even though they are meant to respond within 72 hours.

Someone please help