Bajaj Finserv — loan rejected due to bank sign mismatch

Address:

600041

Hi,

I have purchased utility using bajaj finserv digital emi (1st time purchase).
Today[protected] evening i got a message that my emi loan is rejected due to sign mismatch from my bank.

In message they asked me to resubmit manadate for loan and a link for procedure. Unfortunately the link is not working, i want to know exact procedure to sort out this issue. I tried to contact customer care but i didn't get any response from them.