Without having the benefit of having a copy of the trustee's agreement from the bankruptcy court I would have no idea what to comment on, plus I am not an attorney.
When it comes to bankruptcy settlements you need to be absolutely certain you are within the bankruptcy court's order and applying any moneys accordingly.
I remember a case from the early 80s where a bank accepted "voluntary" payments from the borrower during the bankruptcy before it was discharged. Long story short they ended up paying the bankruptcy trustee several thousand dollars.
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The opinions expressed are mine and they are not to be taken as legal advice.