Hi darthbish,
I just ordered a hat from them last month and had excellent contacts with them, very quick to respond, also paid with bank transfer, took a few days for the payment to get through though.
Try this adress:
service@advintagefedora.de
I also know that Thomas is a member here under the section vendor but they are hardly talked about here on COW, more on the German forum I presume.
There's also this phone number you can try: Tel: +49 209 31202 (taken from their contact details)
I'm sure they're operating at the moment, as I received my hat a few weeks ago. Maybe they're just closed for a few days...
Thomas will get back to you, I am sure of it.
Hope this helps, anyway I know you will not be dissapointed with their Fedoras, they are of great quality
Best regards
JM