Bajaj Finserv — personal loan closure haven't done

Address:

Hyderabad, Telangana

I paid closure amount of 9k change to an executive called Sunil from somajiguda branch along with his manager. Both came to my home and collected the amount saying the account will be closed. When I visited the branch today after a long time they said the amount only paid as 6k change and there is a Balance amount of 4700 to be paid. This is insane service I have ever got. Don't know how to complaint. There is a big line in the branch for the counters.pathetic . I might go to the police station for this. Please help someone who can.