MTN ****!

My network stopped working and I called MTN and they sent me to their technical department who kept saying the tower is down while technicians said there was no problem with the tower. This happened on the 29th of May. For weeks I spent day on the phone trying to get this resolved with no luck. I asked to be transferred to a new contract at least they refused. So I had to pay for a contract I am not using not because of my doing. I'm self employed and depend on internet to work. I sent email with one person saying they should cancel your contract and another saying they can't. Obviously I can't pay for internet I'm not using as I have to get internet to work. I had to get another service provider and abandon my MTN contract which is now damaging my credit. All I need is for MTN to cancel this contract as they are the ones at fault. There should be records of all the calls and emails I send begging then for a solution.