Bajaj Finserv — Theft money from my mother SBI bank account

Address:

Vilathikulam

My mother bought oppoA9 at November 2019 through loan my mother SBI bank account for me. She put my mobile number to them. My mother paid EMI amount loan period Rs.1599. She finished to pay EMI amount at June month 2020 eventhough Corona days. I usually check loan amount through www.bajajfinserv.com. and it show my loan details further it show overdue amount Rs.500. At June month I came to bajaj finserv company at vilathikulam and I told to company staff( Mobile number:[protected] that I told to pay our overdue amount Rs.500 because my mother lost her mobile number that put in SBI account number. But he replied that he said your overdue amount Rs.300 and took your overdue amount next month even I showed the company message through whatsapp. But he replied our company have no business account.
They theft money from our SBI bank account last three months. Again my mother came to bajaj finserv company at vilathikulam and she told why did you take money from my bank account. He replied its not our job you will go to kovilpatti branch irresponsibly.
I attached the relevant bank account details and messages from company account. We want to refund the theft money from bank account.So please I request you that you should action against Bajaj Finserv Company and refund the lossing money.