Be careful with the MTN Data packages, the coverage can be taken down any moment

I am staying in Davel, in March i bought the 20mbps data with router, the signal was fine nothing wrong, was happy, then April, the signal went off, call the coverage center, they said technicians are working on the tower. Now is the 4th week there is still no data, it comes 2 or 3 minutes and goes off couple of hours, if it is on then my 20mbps is at 1 mbps, call the center again, they said the tower is down, will send technicians out. That didn't worked, called again, they said the tower is fixed. I dont think it's fixed if no one in davel don't have signal or data. Called again, just said they will escalate the problem, that's all. That also didn't worked. Im having a new 2 year contract with mtn of 20mbps,but instead have only 5 minutes per day of data on 1 mbps. I would like to cancel this contract since i cannot pay for something i dont have. Do not get a data contact with MTN.