Bad service

Telkom changed my data line to a voice line without my permission. It is now 14 days without any internet connection at home. I have phoned and reported the issue on the (11 calls made) call desk line they can not resolve the issue so I when to a Telkom centre they said I am behind on my account, so I send them the proof of payment they said that the reference number is wrong however they changed the reference number without informing me. The lady said she will sort out the issue it has been 5 days no result from Telkom.