I know why this happened but Sizzix has its own category under crafts and really ought to be a subcat under
Crafts, Handmade & Sewing : Scrapbooking & Cardmaking > Die-Cutters & Punches
perhaps change it to
Crafts, Handmade & Sewing : Scrapbooking & Cardmaking > Die-Cutters & Punches>Sizzix
Crafts, Handmade & Sewing : Scrapbooking & Cardmaking > Die-Cutters & Punches>others
?