Reliance Bigtv — monetary fraud by reliance big tv

Hi,
I wanted to cancel my reliance big tv pre booking and want my refund of 499rs bacause when i pre booked before 45 days i got message that the installation will be done within 30-45 days, but even after several follow up i did not get any installation call. When i called customer care again to know the status, they told that again it will take 2 more weeks as the setup box i don't want this kind of support in future also so i decided not to go for reliance big tv. Please refund my money back. I only have booking id which i received after prebooking and same message received after 30 days. Booking id is 14504910. Cancel this booking and immediately refund my money...