I'm attempting to purchase credits, but in order to do this, I have to add a payment method. I have filled out all the information but the "submit" button doesn't work. When I click on it, nothing happens. I even tried making the purchase from the website as oppose to the in-game store, and when I selected the package I wanted to buy, a message popped up saying "Oops, there was a problem. Sorry for the inconvenience." This was before it even asked me about the payment method. I can't tell if the shop is down or what, but it's kind of a bummer.