network is still suspended

Good day

My name is Natalie and I’m currently still waiting for MTN to open my network line . I came to end of my MTN contract and have asked them to move me from contract over to pre-paid . My cell phone has not been working since Thursday due to network problems, I cannot make calls out or do anything , so I went so South Gate branch to Rica my number again , thinking that it was a Rica prob , like I was told by the call centre agents . They were supposed to credit my bank account as I overpaid my cell phone contract . It has been days now , since my network is suspended . Can someone please assist me with this problem as I have with MTN for a long time .