Wingnutpld

It appears that I can purchase/redeem a gift code if need be but that's certainly not ideal.

I've been trying to upgrade for a few days and I'm always greeted by this:

Server error

The website encountered an error while retrieving https://auth.giantbomb.com/billing/. It may be down for maintenance or configured incorrectly.

Here are some suggestions:

• Reload this webpage later.

HTTP Error 500 (Internal Server Error): An unexpected condition was encountered while the server was attempting to fulfill the request.

This comes from https://auth.giantbomb.com/billing/

Is this known? Is there a work around? Issue occurs in both FF and Chrome.