No attention to their customers

Firstly I was not asked if I wasnted to port. But I've learnt to deal with the new inconvenient number I've been given. My greatest problem is my phone stopped sending and receiving call in beginning of February. Came to the mtn midrand store between 12 and 1 last week. I was informed that only the data specialist could assist, who took lunch at the time. No one else could assist and the line was long wanting to speak to him. Yesterday again i come in at 5pm. I was informed that there is nothing that could be done because he wasn't in. Again no one could assist me. Today i received a phone call that he is he at 3pm. I informed them that I'd be there pasted 4. I requested him specifically. I've been waiting since 4:20 and its now 4:45. Nothing yet