Tata Sky — No service for the last three days

Address:

400101

TATA SKY SUBSCRIBER ID [protected],
WO : N5UXB06

I thought that let me use the services of TATA SKY but it seems that TATA company least bother about their customers. no signal coming for the last 3 days and time and again. I am getting messages or informed that service engineer will visit but till now. neither anyone visited nor anyone contacted me.
It is my second experience with TATA company and I made up my mind that never to buy TATA vehicle and if they do not provide the service then I will request my friends never to use TATA sky.