No assistance from MTN

Since December last year our MTN wifi keeps getting put off even though we pay each month. Our balance was also inreasing monthly. The payments we made were not reflecting even though our paymentsweremadeto one accountnumber. We were informed that we signed a contract for a debit order and now we need to pay R146.99 to remove existing balance owed and send the bank details for a new debit order to be implemented. We have done this payment and sent all necessary documents and proof of payments on numerous occasions but still keep getting switched off. On calling the matter is escalated to back office where there is no contact at all and are just informed that the matter will be resolved in 2 to 24 hours. Even though they put us back on the same thing happens in 2 weeks again. What did we pay the additional R146.99 for. Our debit order is not being rectified and we are running a balance of over R2000 although we pay every month. MTN has no customer service and are the worst network provider to apply for wifi. Furthermore they advertise uncapped which is not the case. You need to buy a booster package when the data is finished. How is that uncapped. I have never met a more *********** unhelpful dishonest network as MTN.