Scammed of information

I RECENTLY applied for a loan and someone called me, claiming he’s processing a loan application for me, on behalf of Bayport Loans.

He took my ID number, banking details, e-mail address, residential address and physical address.

I’ve just found out that he was a fraudster impersonating a Bayport agent.

What can I do to stop the damage he might do with that information? P Mosia