As Peter said…not much you can do.
As a listed creditor their liquidators will asses their assets, probably take 90% of it as an administration fee 👿 and divvy up the rest.
I’ve been offered everything from zero (no remaining assets) to 12p in the pound.
It might be an idea to settle privately, and accept ‘goods’ from him in exchange if he want to play & pay fair. Alternative if he’s just being a jerk is to give him hassle (home visits…but not so much as a ‘hassasment’ case!) or just write it off to experience.
Dave