I had registered with Airtel Do not disturb more than two months ago. My mobile number is 9663350325. I got the confirmation message from Airtel saying that "your DND preference has been changed to fully blocked. Your registration number is S1044057668.Please allow 7 days for the change to become effective". But even after two months I continue to receive the very annoying call every day. That is too 2 to 3 times a day. Thereafter I registered complaints a hell lot of times quoting the refernce number S1044057668 in the airtel... read full review »