FREEAUS50
20% Store wide, including Sales items.
Ends 12pm GMT or 11pm AEDT 20/11.EXTENDED till 12pm GMT or 11pm AEDT 21/11.
FREE standard shipping on orders over £50 using code.
I've tried using a few other codes but none seems to bring down the price further (although they were successfully added) so probably no code stacking.