On Saturday morning, EA emailed a discount code to Origin users who had participated in a survey about the distribution service. The code entitled the recipient to $20 off a game on Origin; if the game was under $20, they’d get the game for free. All in all, a generous thank you which saw Dead Space, Dragon Age and Mass Effect given away as a one time only deal.
One time only. Only, to pilfer a recent Hollywood tagline: there was never just one.
First, users discovered that the code could be entered twice - once in Origin’s browser version, and again in its client - to redeem two games. The reason for this, they surmised, was that EA wasn’t checking the code server-side to see whether it had already been used.
The exploit was finally fixed at 1am PST - 18 hours after the code had been released.