Ridiculously Bad Customer Service

I cancelled my debit order in LAST year October. Ive made another 2 attempts to stop it. Telkom continues to charge me extra service fees of almost 50% more than my subscription fees. Ive logged a dispute almost 3 weeks ago and still no response. They have now suspended my connection without any notice or result on the dispute. Ive emailed them twice. Only to be still ignored. They call us \ dear valued customer". this is pathetic. I would advice anyone to stay as far away from dealing with telkom as possible."""