Bajaj Finserv — Charges Debited From Account.

I have a personal loan bajaj finserv.
loan number : 418PST[protected]
due to some error in my bank account. emi for the personal loan has been bounced...

i have paid the emi tru online banking... including the bouce charges...
now bajaj has debited more then 13000 INR from my account in the name of bouce charges...

there are charges of Rs 490, 319 and even for Rs 885..

debited charges for 3 times for a single month... 490*3 for a month
debited 885 multiple times.. in total debited over 13000 from my account.

tried to contact customer care ..but there is no option to talk with executive even affter browsing 30 minutes thru their phone menu..

writes to them...but wht i am asking and what they are replying in not even connected...

i am raising this issue to the RBi And social media...

i request bajaj to look in to this and resolve this...

13000 has been debited from my account on the name of charges...
plus i have already paid the charges along with emi via online payment for the bounced emi... on top of that around 6000 still pending in my bajaj account in the name of charges..

so on wht rate they are levying charges...

resolve this...