I tried selling $300 of Bass Pro Shop gift cards to Cardpool, and eventually changed my mind. I emailed them and asked if they could cancel the transaction. they said yes. Before I put in the pin codes, I checked the balance online and calling the store. Six cards, $50 each. After making the transaction, then requesting to cancel it, the cards have a zero dollar balance now. Cardpool support has no answer to what they call my "misfortune", and refuse to help me get my money back. I am furiously annoyed and pissed off with cardpool. I feel screwed over on $300 now.