21000 Xbox live points for £4 (uk only)

I saw this on gamefaqs and I thought I would post it here so more people can get this deal, it's pretty good. I've already got 2100 points from it as they ship pretty fast.  
 
Edit: ok not 21000 but 2100, not sure how I can edit a post title. Edit again: ... and this is in the wrong forum, possibly the worst post ever made.
 
 http://www.uk420.com/boards/index.php?showtopic=216576
 

Doesn't seem to work for me unfortunately - looks like that £15 discount code has expired.