Videocon Industries — about tv repairing complaint

Address:

Videocon, New Delhi, Delhi, 110063

I called 39404040 and I have raised complaint about my tv and they came to visit and took 500 from me and told me power supply part will replace and will take one week time to come from Videocon.
But now this is third week going on and nobody came from Videcon for this repairing. When I calling them they always telling me that your tv part will come.
This is worst customer service I have faced. I am very upset and my mistake to bought Videcon tv.