Bajaj Finserv — unusual money deduction from bank

Address:	700131
Website:	www.bajajfinserv.in

Bajaj finserv the most popular finance company in our city is doing useless and not tolerable things with us. It was the beginning of the month there was enough amount for them to deduct the emi amount as i am a holder of laptop and refrigerator bought with their emi service. I don't know why they didn't deducted the money!!! But on 9th oct this year they deducted it. Ok
But after few days they called me and said that i have not paid the bill of this year!
I thought may be there are some problem so i took screenshots of the bank messages and sent it to them. Then they said ok. And i thought the problem has come to an end. But again after 2-3 days there was a message claiming that i need to pay 450 fine charge?
I mean why? Why should i pay? U didn't deducted the money was that my fault?
But i didn't pay much attention to that and ignored.
Now today the 450rs has deducted from my account and after 2 hours later someone called me saying that i have noit paid anything of this month!
I mean is this a company? Who are providing us serviced without having updated details of their customer? And deducting the money for giving diwali bonus to their employees? I want my money back. Do possible needs