I don't understand about the 3.5k usd paid to sofico, is it bounty allocation or management fee? But it is not justified if the project team re-launched a new bounty thread without paying the previous participant's work. I see the spreadsheet is still left open and of course the team can copy that right away so as not to lose it.

The only way to straighten this case out is to have one of them open a scam accussation thread on the appropriate board and ask their opponent to post his denial in the same thread. Let the other members judge who lied about their confession.