Reliance Bigtv — delay in installation of reliance big tv. booking id : a12951767

I booked reliance big tv and paid money for pre-booking on 21st march, 2018.

Its been around 40 days and no one has come to install the tv.
The message that was sent said that within a month someone will come to install the set up box.
Efforts to communicate with them remain futile.
I’ve seen similar complaints with people waiting 100 days or so without any one showing up at their doorstep.

I cannot wait 100 days and then lodge a complaint and therefore would like them to get notified within the timeframe they asked for.

My booking id is a12951767 and no of connections 1. Kindly help