Billing Error and Services Cut

MTN South Africa and there new ILulu service change over have cut my service. Because of a billing error on the part of MTN and my account being switched from old system, to new ILulu system, my special package, with huge discounts attached, and a monthly bill of only R259.00., was incorrectly loaded into new system without the discounts app**** to my account. I tried for a month, to advise MTN of the error. Went to Tygervalley store each week. Promises were made that it would be fixed. The manager of the Tygervalley MTN store advised me to put a stop order on my MTN debit order so that it would not debit the incorrect amount and that I should make payments in store of my regular R259. 00. I have made 1 such payment. My MTN App still says that I am owing R2570. 00 and this is and was my concern all along. But the agent said not to worry. Problem has been solved and that the service would not be cut. Well I got notice yesterday that if my R2570 wasn't settled in 10 days, that my service would be cut. Well, they didn't even wait that long. This morning my services were cut. NO FAULT OF MY OWN. NO SERVICES ON MTN NETWORK. And I going through a retrenchment porcess at work. Not having a cellphone service is the last thing I need. Incompetence of the highest level. MTN, I would love a response from you on this. I have been patient, but this has gone too far.