MTN is beyond useless and has been over charging

Since April 2015 my cellphone bill have doulbled and some months tripled. After raising this with the 808 call centre (Ref ***1) i had no feedback for a week. I decided to phone again and I got told that the note on the system said that fees increased and that is why my bill increased. Needless to say I escalated this again.<br> After no feedback for another 5 days, I phoned again and was told that a credit was passed on my account and the query is closed. Until today i do not know what is happening on my account and what the credit was for.<br> I received an sms today saying that all my airtime and data has been depleted. Once again i phoned the 808 call center and once again nobody could tell me what is going on with my account.<br> I have never seen such shocking services and incompetance. I have been a MTN customer for over 12 years and this is how they treat their loyal customers. My contract is coming to an end in December and I will not be renewing it with MTN. <br> If i conducted myself in the same manner as MTN did in my current job, i would be fired on the spot....