Poor service from start to end

Worst service ever. I wanted to cancel 2 of my data contracts so I called last month, they advised I should call them on 11 October so I did. When I got through to someone after waiting an hour and half for someone to answer, they hung up. I then call them on 12 October and spending an hour on the phone only to be told the system is not working so they cannot help me to cancel 2 if my contracts. I've had terrible service when joining them and still having the worst time with them years later. I was advised to call on a certain day, answer the phone! Seriously dissatisfied with mtn.