Trai — independent tv payment taken against but nothing is installed or even they are not picking up phones

Address:	Gautam Buddh Nagar, Uttar Pradesh, 201301
Website:	www.independenttv.in/contact.html

I have ordered the indepedent tv (Reliance tv) settop box from thier website and made a payment of rs1999 on 10 nov 2018. I got the message from company that

"dear customer, your workorder no is 673186, and your customer id is [protected], your installation will be completed shortly. Independent tv" and second message
"dear customer, welcome to independent tv family your booking id - r[protected] and installation will done within 10 to 15 working days."

But it has been more than 40 days there is no clue of settop box and even thier customer care is not picking up phones.. They have taken money and not giving the product or service and i am unable to contact them..
Please help me either they refund me my amount or they must give product and service.