Incorrect Billing/ No response to query

I wrote to Rain on 15 October querying a bill of + R1700.00 halfway through the month which is ridiculous as I do not stream movies or watch Youtube on it. I was given 2 reference numbers which to-date none have been solved or even contacted 102436 and 102412. How then do you think you will debit my account on 01st of Nov when I have not been assisted and the billing is clearly incorrect????