Bank changed account credentials without consent/knowledge & wrong selling- Bank

2 years ago

Hi,

I have requested bank for my second new account with a different email address and mobile number for better tracking for my transaction and reimbursement. Bank created my new account with new customer id and email id and mobile number but one day bank changed my email id and mobile number of my old account without my knowledge consent documentation. Denied any complaint. On repeat email complaint bank replied eE aadhar / biometric verification and documents taken for new account opening only was my consent to change details of my very old bank account ? And shared letter sent wrong location or having no acknowledgement or tracking details intimation letters. Is it right? What can i do? It's miss use of my documents and un authorised changes were done with my banking credentials.  I would like to highlight following points,
1. As bank was aware of my old account, then they should not created my new account as my need for having seperate email id and mobile number. It's wrong selling?
2. As bank created new customer ids with new details then before any merger and changing account email id and mobile number and address, bank should have taken my consent. ?
3. Bank has given written reply to my complain that my eaadhaar biometric given for only new account opening was considered as my consent for changing account details for my old account. I was never informed to me or I have never signed any documents for changing my old account details. This is not right?
4. How Can bank change my banking details and do merger of account without customer consent or knowledge? Even in the case of signature miss match between both account?
5. MD of the bank replied on my notice that one customer id for blood and flesh and asked bank to tag me as NRR - no response required. This clear now the bank has done wrong selling overriding banking rules.
How law can help me. Plz guide