Unbelievably Poor service

Poor poor service …. Cancelled our line at the end of March this year. Had to jump literally through hoops to get it cancelled. Last month they confirmed to us that the line is cancelled and this month we get billed again. We have visited Telkom shop in Clearwater (Happiest place on earth I have not seen customers freak out like that in all my life) on more than one occasion and have reference upon reference and still we get a bill. Its to difficult for Telkom to work out that if a line is cancelled End March and they confirm the line is no longer in place, that any charges for June and July cant be mine!!!!!! you cant physically phone on the line!!!!! A poor poor show We just called them now and was told the process has changed …. we need to know use the new process..... didn't ask for a reference …. didn't ask for any details..... in the meantime I am probably going to blacklisted through this companies complete incompetence.