Around the middle of October I subscribed to Rain

Around the middle of October I subscribed to Rain. It worked perfect for 2 weeks. From the 4th November I have no connection. I called in and the agent said that a SIM swop should be done. I waited about 5 days for the SIM to be delivered. The router wasnt still working. I contacted Rain support numerously but the query wasnt resolved. I sent emails and no response was received. The agent I spoke to on the 25th November was Tisanda who promised that the query would be resolved. Today the 30th nothing has be resolved. The customer service is pathetic. I am totally disgusted with their service. Tomorrow the money will be deducted again. An email was sent stating that the service must be cancelled and my money refunded but unfortunately they don't respond. Rain is one of the worst internet service providers.