So I got an item called "Guaranteed Dye Unlock" by buying the "Weekly Black Lion Supply Package" from the gem store... I have a fair number of locked dyes on my account (maybe 10-15?) so I thought this could be nice. However, when I tried to use it, it said there were no dyes to unlock for my account. I understand that a few of them can't be purchased because they are for birthdays or whatever, but several of them seem to be available to buy from other players on the TP, so why can't I unlock those with this item? How was I supposed to know I couldn't unlock anything with this? The preview function does not appear to do anything.