MTN - The Poorest Customer Service.

My wife has two Mtn accounts, 1 for the wifi router (R299) and 1 for cell phone (R350). The wifi router is paid by debit order and she requested the cell phone to be a cash payment. She deposited a lump sum amount of R8000 into the cell phone account for monthly repayments to be debited from the lump sum amount. Earlier this year Mtn started debiting around +-800 from my wife's account without any explanation to her, she called mtn call centre to resolve this but no help was offered and she went to mtn stores in Wonderpark (Shop Number: 101(Pick n Pay), Shop Number: 314(Movies)) but these stores were utterly "useless" to her, they are unprofessional and seems to have NO Customer CARE. We decided to reverse the amounts from the bank for several months with the knowledge that Mtn should utilize the lump sum amount for cell phone repayments. She finally went to Mtn North Park in Pretoria North, the lady notice that the 2 accounts were combined and the debit orders were also combined. She instructed Mtn to debit the outstanding balance from the lump sum, but to date the wifi router has been blocked and the PROBLEM is NOT YET resolved after numerous calls to call centre and visits to mtn stores. Ref No: 1- ********** 3064 Ref No: ********** 23