Yeah I got an error last week using the same method. I checked my wallet though and the zen was there. I figured it was just a display error since it looks like everything went thought. Is your wallet still empty?
I contacted their center after having problems with my Google wallet transaction. PW is in the process of fixing the problem with receiving google wallet transactions and has no eta as of 6:48pm today. They suggested using one of their other options until they can fix it.
Yep, I'm having the same issue. Google wallet, and 7 separate receipts, and the money is shown as taken from my account, yet no zen..
I can't imagine why on earth I was so stupid. You'd think that for a zen event/promotion that they'd make sure that their systems were working properly.. but that sort of goes hand in hand with making sure that you have server stability and make sure that you don't have any crashes.
They seem to be incapable of doing anything except selling imaginary rewards for a game they can't keep online, at prices that outpace the rest of the gaming world by an exponential factor. Two C-store ships will run you the better part of $60 worth of zen.. and that's if you only have 1 character.