Suspended contract number for a paid up account

I am beyond irritated with MTN. <br> I made a call to 808 number on Aug 26 between 16:00 and 16:30 requesting for a change in banking details. I was assisted by one of your contact centre agents whom I asked whether the debit order will go through on my new banking details. Was advised it would not go through as the debit order had already been sent through to go off on the old banking details. The agent assured me that it would not be taken off from the new banking details. I advised the agent I would make an EFT payment the day I get paid in order to avoid any problems. I made a payment to MTN on Aug 28 based on payments that have previously gone off from my account as there is not set amount, however it seems as if this was not recorded. I also received a sms for a returned debit order from my NEW banking details. A couple of days later both my numbers have been suspended and I cannot get through to your contact centre lines because 173 tells me my number is suspended and that I should call my service provider who the last time I checked was you. The 808 contract line tells me that my number is invalid. This is surely a good reason to request CELL C to buy out both my contracts.