Bangalore Metro Rail Corporation — arrogant behaviour by ticket issuer

Address:

560049

My mother Jayamma went to byappanahalli metro station at 9:00 a.m on Wednesday (29th May 2019).
She asked ticket for "Vijayanagar" and gave rs50/-.. The ticket issuer, a lady issued ticket to "Jayanagar" and returned rs 5/- back to my mother. When my mother asked why is the ticket given to Vijayanagar? She started shouting at my mother and abused her badly with filthy words. My mother started crying and nobody came for my mother's help.
It was the ticket issuers mistake of giving wrong ticket and inturn she started abusing my mother.
I want this issue to be taken up seriously and escalated to the highest level in Metro.
Metro is provided by the govt for commuters to use it effectively, it doesn't mean that we have to listen to unnecessary words of the ticket issuers and resist the tantrums of them.
Take this issue with the ticket issuer who was on duty on 29th May morning 9a.m