In efficient service from Telkom relating to a fiber package

I was phoned by an agent from Telkom offering me a fiber package for R503,00 which included installation, the line and a modem. I took the package and on 31 May 2018 Telkom disconnected my ADSL and telephone line ( ********** 188) which was a package for R474,00 a month and connected my fiber line for R503,00. I received an account in June for R3 613,45 and my account for July for the amount of R4 496.38. I queries this with Telkom billing and they said they would sort it out. I received reference number ********** 8. I then queried it again a month later and they said they would put a protection on my service under reference number ********** 1 and ********** 6 until my query had been sorted out. My billing has not been sorted out plus I don’t have any internet service now because that has been cut. The service that I have received from Telkom is totally unacceptable and I would like this sorted out immediately.