tax for tits

calling on all blessed women with a bust size my side of DD (DD? tiny!). who also shop in m&s. said m&s is now charging more for our size bras. around 2 quid per item. not yet per breast. i say - boycott them! or join the busts 4 justice group on facebook. the feeble argument is that more material = more cost = higher retail price. but when was a clothes size 20 more expensive than my size 12? although you can lose weight, but we know that big jugs are passed down to us by our mothers. so we are supposed to swallow nothing less than a tit tax. is that how m&s want to beat the credit crunch? or their abysmal performance?