Everywhere you go.... you give me the run around!

Yesturday my phone got ****** - I went to MTN Service Centre, Garden Route Mall - I told them what had happened and said I need my sim blocked and I need a sim swop, and blacklist my handset. I bought a new phone got the new sim and was told in 2-24 hours my new sim would be activated. The following day (today) at about 1 I went to MTN in Oudt to query and confirm that all is in order and my sim will still be activated - I was told they could only log a call...I didnt have a PHONE to phone but they said all they could do was log a call. When I got back home at 16h00 my sim STILL wasnt active (this is my ONLY means of communication for work...and with a consultant base of more than 1000 i HAVE to be connected) - I phoned the *** number from my inlaws phone and a lady said she would email activations to active - give them 30min. Nothing! I then had to wait for my husband could get home to use his phone. In the meantime people have been phoning me...and someone else is answering!!!!! My sim was never blocked I them phoned at about 17h30 and explained the problem and was told to phone activations department...who only work til 5! And there is NO-ONE else that could help!pathetic!