MTN Corporate - Pathetic service or lack of.....

I have been trying to contact MTN corporate credit control department since last week Thursday ( 07.01.2015)<br> I have sent numerous emails called 10 different numbers, every time i dial 809 it sends me to 808 and they say they cant help me. I have tried emailing customer care, they say call 808 which isnt even correct as 808 doesn't assist corporate accounts. I have emailed accounts @mtn no response! I emailed and called my credit controller Arthur Khambule - NO RESPONSE!!!! He read my email... but no response. His mobile number just rings. This is a corporate line, it is needed for business, i am trying to get the issue resolved. Absolutely pathetic service.