Source:
http://www.ea.com/news/for-our-patient-and-amazing-mayors---a-free-pc-download-from-origin-"Our SimCity Mayors are incredibly important to the team at Maxis. We sincerely apologize for the difficulties at launch and hope to make it up to you with a free PC game download from Origin.
Starting today, every player that has activated their copy of SimCity will receive an email that will give directions on how to redeem this offer, and you can also find more information on our FAQ. We’ll be opening up the redemption portal country-by-country so some of you may see it a little sooner than others. The portal will be live worldwide for everyone to select their game by March 22. We don’t want any of you to miss out on your free game, so please note that you must register your copy of SimCity before March 25, 2013 at 11:59 PM PDT and you must claim your free game by March 30, 2013 at 11:59PM PDT.
At Maxis, our studio values dictate that we innovate and create something that is quirky, complex and challenging. Sometimes this bites us in the butt, but our servers are green and we’re seeing record numbers of players all online and having a great time.
Here is the list of games that you will be able to choose from once you are able to redeem. It’s a great list of games across the whole EA portfolio, so pick one and add it to your Origin library on us!"
Battlefield 3 (Standard Edition)
Bejeweled 3
Dead Space 3 (Standard Edition)
Mass Effect 3 (Standard Edition)
Medal of Honor Warfighter (Standard Edition)
Need For Speed Most Wanted (Standard Edition)
Plants vs. Zombies
SimCity 4 Deluxe Edition
This is the first time I have ever experienced such a thing, and it is truly awesome seeing the rather failed launch of SimCity.
Although we can't chose all games, I would really enjoy getting a free game!

Transalation on the right pop-up:
"You are expecting something better, and so do we.
Thank you for your support, we hope that you will accept this free download of a game to PC by us as a way of saying thank you."
"Quote from:
http://www.tomshardware.com/news/EA-SimCity-Server-Free-Game,21574.html
"The offer is even valid for new SimCity buyers until March 25th. However, the game must be redeemed by March 30th, or else the offer will no longer be available. Two games for the price of one? Sounds like a deal…"