Poor service from MTN

I took out a "BOZZA network" Huawei B612 40GB contract on Wednesday 22August. The sim card worked for a couple of hours and stopped. I went back to the Rosebank MTN store and the lady told me she logged a ticket and it will take up to 48 hours to resolve. I waited until Monday and i still cant connect to the internet. Called the lady and she told me they are working on my query. Today i called back and she said they have resolved 50% of the problem. When i called 135/1555 i was told to call the technical department. Whenever i try to follow the voice prompts, i get redirected to the same call centre that tells me to call the technical department. This is poor service and i do not know what else to do to get connected to the internet.....