Reliance Digital Tv — Advance money taken without Installation

Address:

Chennai, Tamil Nadu

Hello,

On 15th January, two marketing people from Apco Marketing working for Reliance Digital TV came and offered us two new connections in an offer for 7,500/-, which we paid for in the form of a check dated 17 January as it was a long weekend and bank clearance would be on Tuesday. It's been a torturing experience since then as we get calls that they are going to come for connection but no one shows up. I have called the customer care #[protected] times, emailed multiple times to [protected]@reliancedigitaltv.com, [protected]@reliancedigitaltv.com, and [protected]@bigtv.co.in, took the interaction reference numbers for the looong calls with the executives but for no use as of now.
One time, the executive told me that the senior is busy with a meeting, not come to office yet, and many times hung up the phone on us, without us speaking any thing wrong ( for which they should have recorded proof in case they record their calls).
The last option was to at least cancel our account, but even that is not happening now and they are not responding for that.

Is there any way where I can get justice on this matter of fraud?

Thanks,
Deepti