10% discount at Miss Selfridge using an NUS number I found on the t'internet (a voucher/promo code site)
Took the number successfully on Tues night (4th) & just had confirmation that my order is on it's way & they've took payment.
Tried using on River Island site today to get 20% off but didn't work.
Don't know if it's a bit naughty or what? but it only asked for 'A' valid NUS number, not mine.
Here's the number if anyone wants it
It may work on other sites also