Worst Customer Service Ever (Wish we could rate negative stars)

Worst customer service I have ever received in my life. I am relocating out of Johannesburg where the 5G coverage is. I have been logging support tickets since about 2 weeks ago, since you cannot get a hold of Rain customer services on their phone number or email, to try and cancel my service. This was long before the end of last month (I sent the first message on 21/07/2020). Sending a ticket triggers an automated response only. I heard nothing from anyone at the company. I also tried posting on their Facebook page and contacted them on messenger. Someone messaged me on Messenger to ask for my ID so that they could access my account. I sent them my ID number immediately, but heard nothing further. They do not even seem to be reading my messages anymore, as they are all still marked as unread (I have kept messaging them repeatedly to try and get some form of response). I finally got an e-mail from Rain on the 31st of July, asking if my query had been resolved. I rep**** to them stating that it most definitely had not and asking if somebody could contact me urgently. It is now another week later and I have had no response from them, despite opening further support tickets on their website and trying to contact them through their Facebook page and Messenger on several occasssions. I do not want to keep paying for a product I can no longer use, but there seems to be no way to cancel it and nobody is getting back to me. I would not recommend this provider to anybody.