As per title, £25 Xbox live credit for only £10.00. Less than half price! That'll do nicely.
£50 is currently £25.00 too, although this isn't quite as good as far as the % reduction.
Seems it's only one of each per order, I got one of each, so £75.00 credit for £35.00
Maybe you could make separate orders and make a bigger saving (3 x the £25 one would have been £75.00 for £30.00 but I couldn't be bothered)
I saw a few of these had been expired so dunno if that was related to stock etc?
Anyway, mine are ordered so good luck.