CellC incorrect billing and useless service

Cell C refuses to resolve an issue with me being billed for a General Purpose radio signal. I asked for roaming read the roaming clauses and what I would be billed for No part of this document does it mention GPRS Cell C billed me for an amount of R 9321.77. I contacted cell c in January 2020 got reference the agent48 hours then I get a message that the matter is resolved no one spoke to me to resolve the issue. I contact the 140 135 place a second complaint in once again the matter was not resolved with me but got an sms it was resolved. I went to Brooklyn cellc and the agent advised me to reverse the payment and sent the proof to cellc customer care to show that I reversed the payment as to ask for a consultant to resolve the issue. I received an sms that I must make immediate payment of the 9321.77 if I have any queries contact 140 well I called the customer care as that 140 is customer care cellc> I was told they are customer care and the agent said they can not help with accounts and would I like to make a complain and the previous complaint will take 48 hours. I have been told three separate times 48 hours and even 30 days to resolve but they can within that 48 hours request my account to be paid but ac counts billed me for a cell tower radio signal GPRS general purpose radio signal this is not on the contract its not stipulated any where on any cell c documentation.