Unable to buy anything

When i am trying to make a purchase i get the magic error: Woops! something went wrong, and the tip is to retry later, i retryed all night, nothing changed

EDIT
Now i am stuck in a loop of ‘‘Complete your account’’, whenever i press the button continue the page just refreshes and shows the same thing

Don’t buy, bought Diablo 3 few months ago and it dissapeared from my purchases

Please don’t necro posts especially when it’s nothing to do with your own situation.