BAD BAD BAD service

Good day trying to cancel contract due to me being retrenched, holding on the line for 40mins entire call ended up to be close to and hour. Yes if you phone from your MTN handset it wouldnt cost anything but holding on and being transferred from one department to the other ...holding on an listening to voice prompts and selecting "0" for champion costomer care agent just to be told your selection is invalid "DUH"....this is very very frustrating and i do not have an hour every day to call MTN and get nowhere..."NO".....if i dont pay the account becuase i cant afford to anymore MTN will put their legal department on me. So come on...... im trying to do the right thing here. Can someone please assist.