WILL NEVER SUPPORT AGAIN OR RECOMMENT

so after I phoned Telkom on the 4th of May holding on for 3 hours, on the 5th I phoned again holding for another 3 hours I eventually got a hold of someone on the 6th of May. I wanted to cancel my service for the end of May because I moved to a new place that did not have any Telkom lines so I gave notice, and by my surprise when I came home on the night of the 6th my line was already cancelled, then I phoned in the next day then they told me the person who helped me did not complete the order correctly.. so I have not had any service for the month of May and now I get a bill for this month? which I wont pay because I did not receive a service, so how can I pay for something I did not use?? Telkom you are pathetic, never will I make use of your service again or recommend you to someone else