Reliance Bigtv — set top box not installed till date

Address:

Sirmaur, Himachal Pradesh, 173030

I had booked a new big tv dth connection on march 18 by paying 499 rs in advance. It was promised that it will be installed with in 30-45 days but till date it was not done. When i call customer care number every time the told that your set top box has been dispatched to the distributor. No satisfactory reply given to me. Every time they are extending the installation date by 10 to 15 days next.

Where i approche.