Board Thread:Questions and Answers/@comment-24431220-20140117153239/@comment-15636815-20140120195607

If you want SO/VO items after the offer has expired, you can submit a support ticket, politely requesting to purchase the items you want. The staff at Pixel Federation are kind and generous, and they frequently honor polite requests of this nature.

Of course, the best time to do this is one or two days after the offer expires. The longer you wait, the lower your chances of success.