Tata Sky — no signal tata sky subscriber ID is [protected]

Address:

Mumbai City, Maharashtra

hi, My tata sky subscriber ID is [protected], it was a new installation and the first week after installation, there is no signal on my digi box, i complained to tata sky and even the nodal officer, the technician visits my place and rectifies the issue and again in a days time, the problem recurs, they promise to send senior technician but noone has come as yet. its been more than 20 days now.hi