Absolutely pathetic service from MTN

I have a 20GB contract with MTN, which l took out in May, the monthly instalment was supposed to be R199 per month. Then suddenly in July they started billing me R210 per month. When I queried this, I was told that MTN increased their prices, effective 01 May 2019. My question is simple, if the increase was effective 01 May, then sure on 14 May 2019, when l took out the contract, that was already the increased price - right? MTN is pathetic!

Then, at end August my debit order did not go off my account. I called them on 18 September, requesting that they double debit my account en Sept to recoup the arrears. They debited my account on 30 September for an amount of R443 and then debited my account again on 03 October for R443. I called my bank to reverse the debit order of 03 Oct as firstly, they were not authorized to debit my account and secondly, my account was up to date so why would they need another R443. Now they are saying l requested them to debits my account on 03 Oct, which I never did. I asked for a copy of the call where I agreed to this and I was told to go to a store and that there is a turnaround time. In the meantime, they have canceled the my debit order because I reversed the second debit card order - - what did they expect, that l'm just going to leave then to ***** my money and tell me that the credit will stay on my account due to their incompetence. Well l'm not leaving it as it - l have written to the ombudsman about this.

Don't use MTN - be warned!