Tata Sky — Fault with set top box

Address:

Mumbai City, Maharashtra

My subscriber id is [protected] and my registered number is [protected] i have 4 set top boxes under this id out of which 1 has been facing a problem since a month for which had lodged a complaint with the tata sky customer care and after calling several times noone has turned up to check my set top box and id request you take please help me out .my email id is [protected]@gmx.com