refund

Has anyone ever gotten a refund from a poker site because they discovered players working together?
My frined did, received a email which stated his account was being credited with about $90. THey stated they discovered tweo players working together in a game/s that he was playing in. They had frozen the account and seized the money when they tried to cash out. The poker site wouldn't state how they reached that number nor would they say what game it happened in. They only said the money was past back out to affected players.
Gives me faith on playing online poker