Bajaj Finserv — unknown check bounce charges

Address:

639105

Dear sir/mam,
I bought 1 refrigirator onemi loan for bajaj finanance .
My actual emi date is 02-05-19. And check clearance date is 02-05-19. I have maintain emi amount for purticuler date. But bajaj finserv company is over chck bounce charges. How is it possible???? This company employees not resbonding for my complaint. And not clarifie of my doughts..