Unhappy with Rain Service

I have made use of Rain's WiFi service for many years now. At least since 2018. However, I am so disappointed in the terrible service received this last month. I cancelled by WiFI subscription early February as I had moved to an area that unfortunately does not have 5G cover. Part of the notifications I got on my Profile was that I would not be charged any further and that I would be contacted for the collection of my router. I also received an emailing confirming that I would be contacted further. I called in yesterday complaint about the fact that I was indeed billed R 599 yesterday and that no one has yet contacted me telephonically to arrange for the collection of the router. After being given all sorts of non-sensical explanations for the billing, I insisted on someone more senior contacting me telephonically. I was told I would be called at about 10:30 yesterday. However, no one did and I received that the debit that went off yesterday was my last (contrary to the notification I got on my profile post cancellation) and that cancellation had been effected and that I would not be billed further. I also received notification about the router having to be collected. I am saying this very loudly and prominently - You can forget about me giving your router back until I am happy with the resolution of this complaint!! So someone better call me urgently, otherwise I am also lodging a complaint with every consumer complaint regulator possible.