Client owes $20K+ for attorney fees. Prior to filing bankruptcy, client sent check for amount owed. Client's bank denied check.

The question

I am an attorney with a client who sent a bad check for fees owed. He filed Chapter 7 and went through bankruptcy in the Northern District of Georgia. He was discharged from bankruptcy on December 7, 2021. When his check was denied, the client promised to pay once he was out of bankruptcy. He since has failed to pay. A copy of his filings reveals that he did not disclose his attorney fees in bankruptcy. How collectible is our Firm's claim for the $20K+ that the client owes?