State Bank Of India [SBI] — change of my registered mobile number through atm

Sir, my sbi account number is [protected] in allahabad university branch, allahabad. I lost my registered number, so i registered for updating my registered mobile number through sbi atm. The transaction shown was successful and i received a sms from sbi which included otp and reference number, which was to be send to number 567676 via sms from my new mobile number. I did the same but the message status says "not delivered".

Please help me.