I'll elaborate since I'm terrible at interpreting emoticon responses sometimes.
Basically I like to mess around with the guide button menu a lot and they put game related DLC on the Games blade now, which in Vesperia's case is the DLC item that boosts your characters 10 levels for 300 points (or $3.75). So I'm trying to type on my computer while navigating the menus with my left hand, so as I reach over to hit B, I accidentally hit A, and since I had 400 points left over, it went ahead and purchased with no confirmation and now I'm sad.
On a side note, today was the first time I checked out the DLC for Vesperia and find it hilarious that they provide level ups, synthesis materials, healing items, and character skills for money. I didn't realize I was playing a microtransaction based MMO. I mean for a single player game like this, I guess it's fine, but still, I feel dirty for having accidentally purchased the level ups (even though I didn't actually use it... yet.).