Sun Dth — Bull sit customer care

I have problem with my Sun dth, it showing E52 no signal past 15 days. I reported to my dealer ( Goldenage Enterprises, No.9, Bharathiyar Street, Gandhi Nagar, Avadi, Chennai - 600054 ), no one taken action. Then I reported to sun direct customer care[protected], they taken complaint & gave me one number ([protected]). Almost I am calling them alternate days, finally they promised me, that they will rectified this problem by today 11am, nobody has come so far. I never seen like this bull sit in my experience. Since 1600hrs I am trying to contact them, I am getting message that "subscriber busy". I don't know talking to whom last 1.30hrs.