Three credit cards, two Paypal accounts and I STILL can't pay for the expansion. All I get is "Payment Authorization Failed" every time.
I even tried going via a proxy to see if it was just a UK issue. No joy.
Every time there's a new expansion, I have this kind of problem. But this is the worst. Digital River is useless. Get rid of them, as you now have another non-paying customer.
(And I even had to create a completely new forum account to post this - the one on my normal login is marked as not able to do any posting for some reason...)