Rain pathetic service

I have been using rain since last year, around February & March I experienced poor connectivity, lots of buffering and couldn’t even open WhatsApp. I wrote to Rain to lodge my complaint, they responded saying that the tower I receive connectivity from has reached capacity, and that there is nothing they can do during lockdown to remedy that. They also told me that they are going to refund me for those months. I told them that I am thus forced to cancel with them. Rain has now deducted money from me in April, May & June and not refunded me. I have been writing to them with no success, they do not resolve issues. I went on their online platform to cancel there and received confirmation of cancellation effective 1 July. I am noticing now that Rain deducted again this month. I have since April moved over to Afrihost fixed LTE and now in June to fibre. The latest is that I wrote to them on Monday they said they will come back to me within 24 - 48 hours and today is Thursday, no one has responded to my complaint, they can’t even meet their own timelines. The other blow is that I tried to reverse these payments but FNB has adopted a no reversal policy during lockdown. I’m doomed. Rain is a ***** and a lier, milking my money even though I’m no longer using their services.