Disgusted at MTN's Service

I am not sure where to start this review. Took out a contract with MTN. It took almost two months from date of request to port number so that I am able to keep my pre-paid number. Thanks to me CONSTANTLY having to follow this was achieved after TWO months. When the porting was finally accomplished I could NO longer receive phone calls or SMS! I must have logged 20 to 30 different calls to report this and most times when I advised the 'champion' of still not being able to receive calls the call would drop....this happened more than 5 times....I eventually went into an MTN Store and I ended up giving suggestions to how to trouble shoot what could be the problem. Stull no success. I was then told that I need to pay for a Sim Swop so that they could try that avenue which I refused. Eventually a manager came and told me I should wait until Monday as activations don't work over the weekend. Monday came and I STILL can not receive calls and sms. Again I went into the store where the manager was still unable to give me a solution and told me to come back today.....as he would log the VERY SAME call and get a different solution? Today I was told it could take between 2 and 24 hours or longer and I need to get a new sim in the mean time? HOW DOES THIS HELP? I am DISGUSTED and sorry that I ever took a contract out with MTN and might be better off canceling and going with another service provider.....this is PATHETIC MTN.....seriously PATHETIC......PLEASE PLEASE PLEASE CAN SOMEONE,ANYONE ASSIST........