On my AmazonPayments account page it says, "You cannot change your tax identification information right now. The information you entered previously is still under review." And I think this is the reason why all my HIT's have been listed as "Approved - Pending Payment" ever since I started about two weeks ago. How long did it take Amazon to review your guys' tax information?
I'm glad you posted something about this i just started checking diff stuff in my account and relized i hadnt even set mine up yet hopefully mine will go through quickly like Playa's did