Bad Rain srvice

We finished building our home and moved into the new area but unfortunately Rain didn't cover that area. Agent confirmed that they don't cover the area and I asked agent to cancel the service. My wife recently found someone who uses Rain in our area and I decided to get in touch with Rain. The guy I spoke to said that there was a tower 3km away but id have to upgrade mu router. However I also discovered that somehow I had accumulated a bill of R5000 even though I wasn't able to use the service. Matter was escalated but Noone called back. Called in again to enquire and matter was escalated once again and this routine of promises to call back which never happen have been my experience with Rain in the whole month. It seems Rain is only interested in billing billing, even for non existent service - billing. They really don't care for their customers because if they did I would not have had as so many promises to call me and not even once did they call. I've had to do the follow up and even then the only time they "call" is sending their bills. Disappointed