Tata Sky — Didn't solve my complaint and taken service charges

Address:

Hyderabad, Andhra Pradesh, 500072

From last 18 days iam complaining and following about the signals not coming only in my TV at the same time when I checked with my neighbors there was no problem with their sets they also have Tatasky connection...service center people sent one technician he demanded material charges which I paid, but I hold their service charges, so that I can check atleast for 24 hours...but these people deducted from my account with out my concent ... then again I started calling call center many times for the same they sent another technician ... without asking me he went up to terrace and came back telling me that he has changed another part... was it new old I mean atleast before changing he could ask me or shown me... then again demanding money for ... I asked him to wait and let me check ... now from last two days my TV has completely gone ... earlier it was coming and going... now it's gone...
These people are mentally harassing the costumers ... Iam altering everyone BEWARE of TATASKY...