What an eventful few days girls in the UK have had! First, the Urban Decay Alice in Wonderland palette went on sale earlier than expected (22nd February), then it sells out in 12 hours. How disappointing. But take heart ladies, today (24th February) you can buy the palette again online at Debenhams.com, and the palette goes into stores on the 28th February. Remember that there are only 2000 marked for UK release, so be quick, and good luck!
Edit: Debenhams are selling them in store now (25th February), three days earlier than expected and stocks are being depleted at a very quickly. Thankyou to SaraB for the information!