Found 1st Jul 2015
Lego Mixels half price, says 41500 which I believe is series 1 but in my local store (Chesterfield) they had series 4 labled as cat number 157/4308. I purchased x9 mixel sets from series 4, at £1 each! They go through the till at 3 for 2! Bargain, great for party bags! Most stores only show as having 1 in stock but if you try and reserve more, I think they get taking off display stock.