Terrible service from MTN

I took out a data contract in August 2020 which cost R299 a month. The signing up process took a long while which should have immediately been a red flag. I signed up at Musgrave center and it took about a week to get activated. The consultant assured me that the signal in my area is good. I've been battling with signal issues for the 2 years, contacting client services and was informed that the tower in my area is damaged and the signal is bad. Also nothing been done to rectify. Now I get a bill of R1200 and when I query, I'm told mh contract is over and I'm been billed differently. The signal is so bad that I've taken the Sim out of the router and put it in my cellphone as a secondary Sim. I paid for 2 years for lousy service and now I have to pay 4 times the amount. The Musgrave store says that only the call center can assist but they are closed on weekends. Will find a better service provider in future