Airtel — NEW CONNECTION ACTIVATION

I HAD TAKEN NEW POST PAID CONNECTION FROM AIRTEL CONNAUGHT PLACE, NEW DELHI OFFICE OF AIRTEL ON 25TH FEB, 09. I WAS TOLD THAT MY CONNECTION WILL BE ACTIVATED IN 24 HRS BUT AS ON 28TH FEB, 09 7 PM MY CONNECTION IS NOT ACTIVATED. I HAVE SPOKEN TO EXECUTIVE MR NITIN ON HIS MOBILE BUT HE IS NOT HELPING ME. SO KINDLY LOOK INTO MATTER.