Reliance Bigtv — installation pending from 6 months

Address:

New Delhi, Delhi, 110059

I had ordered rbug tv connection on march 01, 2018 with a confirmation message that same will be inrstalled in 30-45 days but its more than 180 days and no response from their side.
Neither they respond nor refunding money.
Even they use abusive language while calling.
My booking id is 12513898. Booking name is manoj kumar gupta.
Request you to help in the above mentioned concern or guide for further action