Bajaj Finserv — payment not credited to my loan account

Address:

560054

Had sent a demand draft for 5.26 lakh to bajaj finserv, residency road branch about 15 days back. Upon receiving the courier the branch people did call me to find out the specifics about my loan account.
However they had not provided any transaction number or some sort of reference.

The amount is still not credited to my loan account and i am continuing to be charged interest / emi for this month as well.

There is no contact number provided and neither there is a way of reaching out to any humans.
Their support email is useless as they keep asking for reference / transaction number to track. Neither they are willing to share any contact phone numbers of the branch.

This clearly amounts to default in service and indirectly cheating the customers.

My loan account: 404sol33196566