Billed for service not requested

Last year Trudon called me to help me advertise my business. one service to add my details in yellow pages and with an option to add to the mobi service. I wall told yellow pages is an amount and the mobi service a separate amount, I was not in formed that both amounts will be monthly. it was indicated that I need to pay a monthly installment to a service and an another amount for the other service. it was not stated that both will be monthly. with the service added to my monthly Telkom bill I notice a large amount added. after complain to Trudon they inform me that it is correct for both amounts. after listing to the original recording and that it was not confirmed that both the services are for monthly I cancelled the services. I still got billed for the service for monthly, I told them that I can not pay for service that was not confirmed as a monthly payment. NOW they listed me on ITC for a lousy R600. I think their service is terrible and they just out to take your money