Bad service and client service

My contract is still not right. If they did not make it right. I will stop my payment till they make my contract right and everything work like it sould be. Then I will make a payment again but not before then. So the ball is now in MTN' S hands and they must deside what they gona do. I will also put this information on facebook so that every body can see what is going on.with MTN. THEY ONLY WANT MONEY BUT REFUSE TO DO THEIR WORK PROPERLY.