I took out a fiber contract in September 2023

I took out a fiber contract in September 2023. They said openserve is going to do the installation of the fiber, recieved a message that the fibre is ready, got home the afternoon and no ONT box was installed so obviously no fiber to use. They billed me on the 1st of October 2023 for R1092.95 for no service or fiber used. Phoned them every day just to come to a dead end saying they will escalate the matter. Nothing has happened. I had to phone the every time. I canselled the contract because I didn't recieve any service. They said they will credit me back the money, and now on the 1st of November I see they billed me again. Theyre service is the worst I have ever encountered. Kind regards R. Allers