Rain is the worst service provided ever

Good day. I was experiencing connectivity problems as soon as I moved to Meyerton. I called countless time and was informed that unfortunately there is no 5G tower near me there is nothing they can do. I then decided to cancel my services with Rain on the 26th of July one of the agents informed me that I need to pay first before cancelling and my last billing will the amount that I paid in the 25th of July however to my surprise I was billed again on the 25th of August eventhought I was told that my last payment will be in July. I then call rain and I was assisted by a young man who was very rude and decided to hang up, I then called again and was assisted by a young lady who told me she understood my complaint and she will process a refund as they were not supposed to debit. 4 days later I realize my account has not been credited I then decided to call rain and they tell me that this is my last debit. Rainnisnthe worst service provider ever their employees are often rude and do not appreciate their client's if it were possible I just want rain to refund my money back.