According to Office Depot's facebook page they know the game had an error... This is what Office Depot says on Facebook....
"Thank you for the tremendous support! We are verifying the first 300 eligible Office Depot® Gift Of The Day instant win game registrants. Due to an error in the web site structure, some errors were seen by some instant win game registrants. This error has since been repaired. An e-mail will be sent to those verified game registrants via e-mail confirming entitlement to a $30 Office Depot® Gift Card, per Offer Terms."
http://www.facebook.com/OfficeDepot#!/OfficeDepot/posts/113589435373258