Punjab National Bank [PNB] — nomination in locker

Address: Kanpur, Uttar Pradesh, 208010

My mother smt vijay lakshmi w/o late vijay kumar agarwal r/o 114/3 j. K. Colony, jajmau, kanpur 208010 holds an locker in pnb branch chakeri, kanpur with branch code 2863. Locker has no nomination.
Now the situation is that my mother is hospitalised in icu with a critical condition on oxygen and is not in a condition to move to bank in person. Now we are requesting branch manger to accommodate us and do the needful they can send a person to bank for verification but they are rigid and saying that holder has to come in person only. Now in taking patient to bank if any thing happen than who will be held responsible. Secondly how to have nomination done in such case. She in in complete sense, able to recogonise and speaking also
Please help, i went to bank with undertaking of dr and aadhar card & pan card dually verified by dr.
They (Bank manager) are not ready to help at any cost.
Please help us.
Thanks
Navneet agarwal