Most pathetic service experienced ever

On 29/04/15 I phoned and queried my bill that was almost twice the amount I usually pay. Ref ***, I was told that someone will get back to me in the next seven days. To date I am still waiting for that call. For 2 months my billing was twice what i usually pay when my usage was on average the same every month????<br> <br> On 26 Aug i phoned and spoke to Candice *** to cancel my contract to prepaid. I told her that i have 2 numbers linked and that both must be migrated to pre-paid.Until yesterday it was still not done!INow only the 1 number is on pre-paid and the other one is now not working at all? When i phone 173 they cant help me and when i phone 808 also no joy??? <br> How am I suppose to have this sorted out now.<br> <br> Being a MTN customer for years its really sad to experience such constant bad service.<br>