Bad service

I have moved my telephone lines in August 2019 and I have asked telkom to cancel my phone line as we are trying to port the lines to Vox, Vox cannot port my line as I have a open order at telkom and with everyday phoning emailing and ect I have had no help from telkom as such. And guess what . .... a call from me to telkom today and the order is still open, everytime I call them they say that the we will escalate the matter and nothing is getting done about this I have no received a bill from telkom after I asked for it to be cancelled. Dont know what to do anymore unhappy telkom customer