Consumer Redressal

I got a Tata photon connection, Photon no -9213093495, in March 2014. Since beginning I was having problem with the speed and I filed complaints with the customer care through phone and emails. They did not resolve it within their stipulated time lines when I escalated matter, it was informed that their connection site is down in sector 19 and the issue cannot be resolved till 20th June. I asked them to adjust the bill for the data I could use and not for the full data which I could not use due to their connection/network failure and take their device back and refund my money of for the device as I needed internet connection for my daily use and I am not able to use it for the last 1 month. Due to similar issue I had got the connection disconnected 2 years back on the same device after 1 month of usage. The device is of waste for me as I cannot get connection from any other service provider on the same. They are not responding to my repeated emails. I want to file a case.