I am digital TV subscriber and using Hathway Set top box which was purchased in my mother name Ms. Ratna Zutshi. (Ward No. 2, Mehrauli). We purchased set top box from our cable operator in March and since then the box is not working properly. But from last 2month we are getting NO SIGNAL caption on our TV screen. We have complained to our local cable operator (Exotic cables) and Hathway customer care center, in fact have called them several times but no body has till date responded to our problem.