Reliance Bigtv — installation not done so I need refund of my amount

Address:

Dharwad, Karnataka, 580030

Here i am enclosing the document of prebook of reliance digital tv which is booked on 1-3-2018 as per the offer it should have installed within 45 days from the booking date but its already 6 months passed i have not recoieved the setof box so this is worst service i have expirienced so i want to cancel the prebooking and refund my amount of rs.499 which used for prebooking. This is second reminder for refund so do the needfull asap. This is worst service i ever face in my life.

This is the mail information to [protected]@rbtv.in and 2nd mail i am sending still no information given mail sent as per costumer care instruction.