So this is what happened - http://steamcommunity.com/profiles/76561197993957095 - this guy approached me to buy my unusual with a copy of GTA V. He agreed to go first so we proceeded to trade. I then resold the copy of GTA V to another person for other tf2 items. A few days later, the game got charged back due to fradulent use of CC etc. I had no idea he would do that given his 8-year old profile, but I was wrong. Now the person whom I resold the GTA V to demands me to compensate him. I am obliged to do so?