Incorrect billing, worse service!

Very unhappy with rain! I have been their customer since 2019 and I am ready to cancel my contract!!! They have been billing me incorrectly for the past 4 months. I called in in November 2024 and received a refund because it was their agent that misinformed me, they heard this through the call recording. It has started again, I have called them multiple times for the past 3 days and each time I am told I will get a call back, I have not been called back. All I received was an email explaining why they are billing me, putting me at fault. When it is their system. And for some reason, the agents aren't speaking South African English or venac so there is a lot of miscommunication. I can't even process a cancellation and I am told to go do it on the App, which always gives an error each time. I actually want my refund! I am ready for us to go our separate ways. This is not a free service, I am actually using my hard earned money. ***** it!