OVERCHARGED AND DEBITED

I cannot get hold of MTN and neither can my husband. Both of us have been overcharged on our accounts By R2000 each. This seems to be a common issue with the same happening to two other people we know. We cannot get any help because of this strike. We need our account sorted out. This is the last MTN contract that I will take out - I have been usuing MTN since Campus ( over 15 years) and this is just shocking . I want my account corrected , we will reverse the debit!