cjsoto on 09 September 2007
For your credit question, I'd recommend asking eStarland directly: support@estarland.com.
As for concerns about getting ripped off, merchants will generally pay less for used games than will other players. (After all, they're counting on flipping the game for a profit!) I regularly use gametz.com and goozex.com to trade and sell my old games, and I've had good experiences with both.
