Disgraceful service from MTN

<p>I have been a customer of MTN for the passed 20 years and have only had 1 cell phone number since I started my carrear. I have paid my account via debit order and never skipped one payment through all the years. Two months ago my cellphone contract was suspended immediately. I then contacted the customer call centre of MTN and they advised me that I had used data (internet) for a period of 20 days which amounted to R12,400. The was absolutely not the case and just not possible as I have wifi at work and data is not used during normal office hours. They then said it was an error after speaking to a second consultant, the first consultant was extremely rude and said I had to pay the R12,400 or else my account would remain suspended. Since this has happened MTN is now billing me for data usage which I have never been billed for in the past and on the itemised billing the reference is "mymtn". I went to the Tzaneen Crossing branch and nobody can assist me as to what was downloaded, I have called the call centre twice and the consultants whom I spoke to cannot tell me either. I pay for itemised billing every month, yet the reference for the internet is "mymtn" which doesn't tell me what exactly was downloaded. I received a break down from MTN as to how internet is charged which still doesn't help me, I want to know what was downloaded. Without this information I will not pay the internet bills I have received over the past two months. Furthermore I contacted the upgrades/migration centre to change my current package. I was promised that they would call me back, nobody has contacted me since 22/11/2016. Do customers get such bad service and are just billed without a full description and MTN just does not care about their clients because they are so big and have many clients. This is an absolute disgrace and once my contract has expired I doubt they will even notice that I have gone to another service provider.</p>