Bad customer service

<p>After being a customer of MTN for such a long time, I'm forced to reconsider my status since there's nothing in it for me. For the whole year I have just encountered bad service after bad service. I'm currently on a Top-Up contract which will expire next November (2017), I have been on a Top-Up contract for the last 4 years. Every time I roam, I have to put in airtime in SA and any calls or sms are charged against that airtime. And that has always been the situation until April 2016 & Jun 2016 when I was roaming. For some reason there was an extra charge on my invoice on both occasion, when I enquired with MTN on what these charges are for, I was first told it's for the calls made during the roaming duration. When I made them aware of the fact that I had airtime loaded and these charges were supposed to go against that, then the explanation changed to "it's charges for having activated roaming on your account". I then requested that the function be deactivated, which I was informed it was deactivated. All this was prompted by the fact that I could not make calls anymore as my account was SUSPENDED. I was informed that the account will be activated and an investigation will follow. Months went by and now it's December 2016 and I can't make calls because my account is SUSPENDED, when I phoned to enquire I was told it's because of the same issue from April & June 2016. I have had invoices send to me from July - December 2016 which does not reflect any outstanding amount on the account. I now have been told that investigation will take 7 working days??? The investigation has been going on since April?????</p>