Unprofessional and poor customer service

Rain internet service provider,service sucks to core.I have signed with them a month ago and have deducted money from my account and have not received the sim card. They don't have contact number numbers to complain of enquiries.What kind of customer service is Rain providing?All i want is my refund and cancel the contract as they have failed to render a service from their end.Rain please pay back the money....