Bajajfinserv — auto debit of rs 590 from icici bank in the name of bajaj

I have brought a bajaj emi from bajaj finserv of some item but i have paid all the emi auto debited from my icici account but bajaj finserv have charged me rs590 in the name of auto nach and if i enquire with the bajaj they are blaming they have not received any such amount in the account instead they are asking to enquire with the bank and bank also blaming the same vice versa.