Extremely and abysmal service from Cell C after trusting the company

I got a call from Cell C last from a representative whom I explained what had happened. lets start from the top I took 2 contracts from Cell C and the Sales agent that spoke to me took my banking details incorrectly and now my account is in arrears by the amount of R2108.44 which is Unfair because the person I spoke to from back office advised me he will activate my lines and make a payment arrangement for me however no one helped me thereafter now my lines are blocked again . I phoned Cell C back and advised the agent what had happened and she logged a query for my and my reference number is *** , This is unfair because it is not the customers fault and clearly the company is at fault because I have more the 2 lines with Cell C and that Cell C has been successfully debiting every month for . I advised the back office rep that its not the customers fault and the customer should not pay for a mistake that Cell C has made and this is really unfair , So Cell C once you are reading this please call me back on *** to get this resolved I am not asking for much all I am asking for is my lines to be active and for now Cell C to waiver all the charges that I have occurred on the 2 lines to be active .