Never ending frustration with DSTV

I've canceled my contract end of May 2021 and til this day it has not been done successfully and I've been calling them and sent them emails. The services have been canceled but not the account. I'm always transferred to this one department which I have to hold for more than an hour and the phone cuts. I've been doing this since May. I'm frustrated as I told them that I'm canceling my contract due to financial strain. I cannot pay the account, which keeps on increasing due to monthly fees, because I canceled the contract but they're taking an advantage of me. It's very exhausting and draining dealing with them.