Such a terrible service by Telkom

Opened a case in August due to being billed twice for 2 different contracts when I wasn’t told that the other faster connection I was being offered was a new contract. I was told this morning that my case was closed on the 7th September and no one ever called me to give me the outcome of the investigation as they were going to listen to phone recordings of the sale. I’m very angry right now and they can’t locate the person that closed the case