I have just ordered a couple of items from Wallis Online and saved a nice amount based on the Wallis Irish stores.
The savings are three fold -
1. euro/sterling prices - even with the current exchange rates it is still cheaper to buy in sterling
2. Free delivery to Ireland
3. 20% discount
The two discount codes are:
WALLIS28 - this is for free international delivery
SHE5 - applies a 20% discount to the items in your basket, including sale clothing
The discount codes should be entered when you go to your shopping bag online - in the promotional code box.
I am unsure of the expiry dates for these discount codes.
Wallis also currently have a 50% sale on lots of their jeweller online, though the 20% off discount code does not appear to work on these.