Billing

in June 22 i got a message on one of my contracts the there is a different service provider registered on my line ( the R7 a day ****s) i phoned the call center to take it off my account . after saying that they removed it !!! i left it be. In August i got a bill for July, just over R1000.00 when i phoned they told me it because of the provider that is subscribe on my phone. i told them to go back and listen to the recording and come back to me. they did and agreed with me, and lodge a compliant to accounting. Now after months of fighting and at lease ones a week, i get disconnected or send messages they handing my name over to the credit department. it still not sorted and the best of all for a phone company , i cant go to there accounts department because CELL C don't have phones for the account department they have to be e-mailed. but the call center has been mailing them for months and still no answer. and every time i get disconnected i have to explain the hole issue again, and you cant asked for the person you spoke to before because they no were to be found (like the account department) now if a person has a account with a business and can't even get a number to sort your account out how do you describe that business to your mates.