I just ordered a remote only (I was planning to order at 5am pacific but slept in an hour). The Apple website and app kept declining my Apple Pay credit card though. I called my credit card company to see what was up and they said there was no issue on their end. Still kept getting declined, and another oddity, the first time I tried to order there was a paid and a free shipping option, now there was only paid shipping. But since I got declined, I ordered from Best Buy (using their app). Weird thing was I got some error with them too but the order still went through apparently because I got a confirmation email.
This whole experience was just buggy and weird, but at least my order is put in now (hopefully).