If you are from UK, Go straightly to contest and enter it HERE
If you aren't from UK, Follow these steps:
1)Go to UK proxy like
2)Paste the stardoll link into the blank box of the proxy site
3)Log in stardoll
4)Now in the proxies URL Address Paste contest link
5)Wait till page loads, Click Enter Competition button
You don't have to fill the boxes
6)Leave the proxy by closing the window/tab, Go to stardoll as usual.
Shirt will be in a giftbox in your suite.