Debit Order Change - No Assistance

I called last month to change my Debit Order Account Details. After 3 calls, finally got to someone who did not put the phone down in my ear. Went through all the agonizing steps and questions... and I was told that it has been changed.

To no ones surprise, end of May the debit order tried to go off on the old account, which obviously made it bounce. My SIM card is no deactivated due to non payment. I have been calling 135 multiple times a day, but keep getting dropped calls or 'bad' lines.

I went into a branch hoping for assistance, and they promptly told me that they can't help, I need to change the debit order details by calling service center on 135.

I have also tried their wonderful Self Help App. Pot of nonsense!!! Can't even log in, immediately after creating a log in, I got a Error - call service center.

Well, it is almost month end again, and my details still have not been changed!

MTN is the WORST SERVICE PROVIDER IN SOUTH AFRICA! I have never heard anyone from Vodacom or even Cell C complain like MTN users do about customer service.

All this is after I started my contract and explicitly asked to keep my old number, and boom. New number. When I went back and asked about this, oh sorry, we can't do that. So now I am stuck using two sim cards, because MTN can't follow basic customer instruction.

Will definitely be terminating this contract as soon as the contract is doen. Which will definitely be a hell of a issue in itself I suppose.