Usually at the time of opening itself banks seed your bank account with aadhar card.
As, this is a digital account, they r not able to seed it, I guess.
I had same issue where bank of baroda didn't updated the aadhar seeding and my subsidies failed.
Bank of baroda was clueless too, after 2 times submission of application form.
I was given the access of their backend and being in IT, I knew about the CRM and was able to seed my bank of baroda by replacing the previous bank account.
Nevertheless, until and unless you are not availing any subsidy,schemes from govt. and you want aadhar to be linked to ur previous account only rather than indie so you should be tension free.