Municipal Corporation Chennai — internet banking registration

Address:

Belgaum, Karnataka, 590001

Well greetings sir this is sharifula husain bepari from camp belgaum Karnataka. my a/c no. is[protected] and recently I've changed my registered mobile no. for internet banking and other net facilities. After entering all the detail about my a/c and debit card and customer id etc when I'm hitting submit its showing invalid mobile no. I went to the branch and updated my mobile no. but also its not working. please help to sort out the problem