Last weekend, many players found their Origin catalogue unexpectedly increased. Certain Origin users were awarded a $20 off voucher for participating in a survey about the game distribution service. However, those awarded quickly realised that the code could not be used just once, but as many times as they liked. Anndddd… cue the Internet!
The codes immediately found themselves distributed, mostly via Reddit, resulting in thousands, if not hundreds of thousands of free games. EA have since shut down the code, resulting in frustration for those who legitimately earned the code but had not had a chance to order anything yet. They will also be honouring all purchases made over the weekend, resulting in further frustration — as many those who earned the code legitimately are missing out, but those others who didn’t even take part in the survey wound up with a whole bunch of free games.
Perhaps not the way to handle it, EA.
Source: EA Forums