Instructions:Found in the Metro paper on 13 May 2008.
Use code: CLACM03 for 10% off clothing.
"Enter the Promotional Discount Code at the 'Pay & Confirm' screen during the Play.com 'Checkout' process. Click the 'I have a promotional or discount voucher code' button and enter your code when prompted."
There is another post for a clothing discount here: http://www.hotukdeals.com/item/180887/10-discount-code-for-clothing-acces/
I think the mod wanted us to post this code by itself, so I have.