Pathetic Service

I paid up my one of two contracts with MTN 4th April 2021, 12th and 19th April I called the call center to make sure my debit order of R349 is still collected the debit never went off and I called again only to be told I will be debited R906 after over paying in April , and now MTN has listed me as a bad payer , my ICT is affected and I called over and over to make everything is correct on my side but still MTN does what they fell they want to, I called and requested for a manger to call me I am still waiting.

Today my account was debited for R906 and I still don't know why, I need answers and trust me I am going to cancel all my contracts with mtn and I will never do business with them again , I was never listed as a bad payer for a cellphone contract that's pathetic and the service and mtn sucks , the lack of communicate is beyond me.