I've tried to purchase the Sam and Max collector's DVD (which should cost me only shipping fees, since I preordered the entire season). In fact, I've tried multiple times. But, for the life of me, I'm unable to do it, due to technical issues.
Whenever I try to finalize the purchase (when, after either entering a credit card number, or selecting to pay via PayPal, I hit the final "Submit Order" button) the screen changes to a blank white page.
Nothing further happens, no "Thanks for your order!" page appears. Refreshing the page yields the same result. Furthermore, my Games page indicates that the order has not gone through.
What's going on? Why is the store broken, and when will I be able to buy stuff again?