Fraudulent purchases are typically done by gold sellers with stolen credit card info seeing how many they can buy and turn into gold before they get banned. So of the gems came instantly, gold sellers would get tons of gold instantly.
And in Your oppinion someone who use “stolen credit card” will do it with preorder for 80€? Why, if they can get this 4000 gems for 50€ 365 days a year?
Yeah…