MTN - Your incompetence is astounding

I have been told since last year that my MTN account is in arrears. When I asked for which months I did not pay, and I was told it was for September and October 2020. I provided the proof of payment several times to show that I made payment. Each time I was told that they will escalate the query to have it sorted out but nothing gets done. Time and time again, my account gets suspended because of this. I have so many service tickets logged against my account that have not been attended to. To top it all I even pay extra on the invoice amount and have been doing so to the point that its reduced the outstanding amount to under R300. This means I have essentially been double paying for those two months. And why do you ask this happened, well its because MTN switched over to another system, The Sept and Oct invoices were paid on the Legacy system but they then readded those 2 paid months to the new system. I am beyond frustrated. Nothing is being done by the *********** people in the finance department. I have been an MTN client for almost 20 years - This is not the why to retain your clients MTN! I am definitely going to take my business elsewhere and tell everyone I come across that they shouldnt use MTN! My account is not in arrears MTN, in fact it is in credit. I have lodged a complaint to your service department yesterday and in 14 days I will be lodging a complaint at ICASA.