OTP gets sent here, there.

I changed my email address on my profile, and went into the branch to change the email address for my OTP. It took a long time but eventually I started getting messages to my new email address. For a few months I received OTPs etc. to both email addresses. I contacted the bank to ask them to stop sending emails to both, and to s**** the old email address. Nothing happened. Then I stopped receiving all communications to my new email address. I phoned the bank who said all communications are now going to my old email address. Now I cannot use online banking.