There seems to be a maximum value for a discount but obviousely no minimum value. If it is an mistake or intentional, only the vendor can know... But the fact is, it IS possible to give a 1 % discount, and who can say that there won't be similar 'discounts' in the future? When it even for you seems to be a mistake, why isn't there a minimum value for a discount as you have one for a maximum discount?