Bad Service

I wrote a report about how bad my service was with MTN via Helopeter and not only did they come back very late with a response apologising for the delay (which I will still give them credit for, maybe they busy).<br> They said my phone was migrated to prepaid (yes I know this), and then to say I was credited..... I am sitting at least once a week trying to get through to them to get credited and still am. No I have not been refunded for all the deductions that was taken on a contract I did not have.