How much should a 2-month-old dwarf rabbit weigh?

If your rabbit is two months old - it shouldn't be any bigger than the size of a football. If not, then the place where you got her/him ripped you off.... It happens a lot. Dwarfs, I believe, sell more because their "dwarfs" and of course are supposed to be a lot smaller than regular rabbits. The breeder could have lied or the person at the pet store just 'guessed' what it was.