***** on MyMTN app & unhelpful consultants

I have had my contract with MTN for over 4 years, I upgraded after the first 24 months and didn't take a new device. Since I had not lost my job last year, I decided not to upgrade, as I was not going to be able to afford it. Since then I have continued to pay for my account through the paygate option via MyMTN app. However, I have a lot of issues which seem very ********** to me - None of the payments I have made have reflected on the invoices I have received - the amount that I owe keeps increasing, even though I have ensure that my payments are made even though at times its been late, - I have sent proof of payments to MTN agents who have been useless

This has resulted in my account being suspended and I am now told I owe over R2 000. This does not make sense. The latest story I have received from the agents is that I am now being charged a month to month fee, which I have previously queried and told that is not the case.