State Bank Of India [SBI] — Refusing to open savings bank account

Address:	Kolkata, West Bengal, 700060
Website:	www.onlinesbi.com

Smt. Nayanika Kundu (w/o Sri Kausik Kumar Kundu), visited SBI-Parnashree Branch (IFSC code: SBIN0002016; Address: 394 Parnashree Pally, Kolkata, 24 Parganas South, WB-700060) on this morning (06/12/17) for opening a fresh savings bank account.
The bank officials have refused to open the same and said that they are busy with "audit" and advised her to visit after 20-22 days. Then she approached Branch Manager and he advised to visit again in the next week.
In the last month when approached for the same, they simply refused, probably they were busy with demonetization process.
Now my question is:
1) Is bank account opening is not a mandatory work of bank officials and is it depended on their work load on that particular date when somebody is asking to open a bank account?
2) In this present days where country is insisting for cashless how much such behaviour of officials of the biggest nationalised bank of the country is justified?