I was billed double by Rain

I wish everyone could stop using Rain so that they learn the importance of customers in the business. I got Rain 5G router in march and ever since then it has not worked at all ...i had no internet for two months , i logged calls to their support , called the call centre but no one helped, it was when i requested for cancelation where i got their attention. Rain customer service is really terrible...i was billed double this month and i don't know for what. I called their customer care they keep transfering me from one agent to another. Rain can i please have my refund, i had no internet for two months, what was i billed for?