HDFC Bank — OTP not received for the past 10 days

I am a customer of HDFC.I use net banking extensively. I have been unable to add third party beneficiary or any transaction that involves OTP to the mobile.The issue has been raised with HDFC consistently.Afetr sleeping on this issue for 3 days, the guys agreed that there was indeed a problem.They contacted the 3rd party provider and requested 3 test OTPs to be sent.The test were all received.However, OTP initiated through net banking is still not received. The problem started after the new Web site was put in place.The amount of idiosynracy that I have had to deal with is phenomenal.They blame my hand set to my mobile operator.Didn't know when HDFC became wizards in mobile telephony. Notifications for withdrawal and third party transfer to existing beneficiaries is being received on the same mobile, no issues there . I have not provided identifying data for security reasons.However, should HDFC should contact me, please get in touch on my email ID given below. Regards Sundar email : anbualli AT gmail DOT COM