This is a common income tactic with mail order. Some companies have a graduated scale as your purchases increase, regardless of size,wieght or quantity.) They simply can't be bothered assessing the true cost per order, or listing the true wieght of the product ( a few do this.) So they create a very generous ( to them) scale. I try to patronise firms that treat me fairly. When I do make a purchase, for instance anything from WIGGYS ( NO S/H FEES) I also make a photocopy of the M/O and order form. I SEND IT TO THE COMPETITION and explain why they lost my order.