Bank Of Baroda — regarding rooma branch manager

Address: Kanpur, Uttar Pradesh, 208013

I m the satisfactory customer of your bank but last few months i was found very difficulties to change my bank account mobile no. From last two months i was visiting the branch to change my mob. No. But not get success. As today the branch manager of my branch rooma kanpur u. P has clearly said that i am unable change your mobile no. And also not accepting my application regarding the same.
I want a strict action taken towards the branch to fullfill the services to the customer which they demand.
Please take a strict action towards my complaint so no other customer has face the same problem.
Tankyou