Shocking bill and no existent service

I lost my SIM card in September and requested for a new SIM card which was never delivered. The services were also not suspended. I am now sitting with a bill of over R2000. I called Rain and they promised to fix it, for over a month now.

I tried calling them again now at 08:35 and it says that I have reached them outside their normal working hours.

The service received from Rain has been appalling and I wouldn't recommend it to anyone.