Rain Wifi Billing Nightmare!

The worst when it comes to billing, I have been on the phone back and forth with the company regarding my wifi billing. They initiated an amount of R1413 as a promise to pay, separate from my normal monthly subscription of R939. When I inquired, they said I was the one who did that on the system. I asked them to change the promise to pay amount to an affordable amount so that the total per month, including my subscription be an amount that is not greater than R1500 per month. They refused and said they won't be changing that promise to pay amount; there is no way I'm going to be paying R2500 for wifi. The 1-star review is because I can't give them a -5 review. My advice to anyone considering them as a wifi provider is, DON'T DO IT, DON'T EVEN GO THERE!