Don't get fooled people, Rain speed is terrible.

I ordered the Rain 24/7 4G month to month service on 31/07/2020 after checking coverage on the map on their website. I received the Sim and activation on 06/08/2020. We were only able to start using it from 13/08/2020. Since the start we have been unable to get anything even close to 1MBps speed. Speed tests done range between 0.8MBps, 0.2Mbps, 0.1MBps. We tried everything, optimising, moving the router, trying different times of the day and night. There is no call center or support contact or email address for complaints or support. No reply on Facebook chat after initial response to poor speed. I stated I want to cancel the sim as I have paid for a service that I am not receiving. I chose to give RAIN a chance as it is a month to month service. So I can cancel it if it doesn't work and it won't cost me any more money. However on many groups I see that Rain keeps on charging you monthly even after you cancel your Sim. So I am getting Hellopeter involved to assist me in making sure I don't get ********** any further. I have cancelled the SIM today 17/08/2020. I have paid on 31/07/2020 for August 2020. I am not liable to pay one more cent to Rain and want their assurance that there will not be any further deductions from my account. I received an email after cancellation stating the following: "We got your request to cancel My SIM 1. It'll be cancelled at the end of the month, and your final bill for this SIM will be processed on 01-Sep-2020". What final bill? A R0.00 bill? I need confirmation of this.