I received a reply from Wacom the day before yesterday, asking me to send them a copy of my receipt and after I did so yesterday I got another reply and they're now asking me to ship my tablet to Germany for eventual repairs/exchange. Which means starting tomorrow I probably won't have my tablet for a while. They said the testing/repairs take up to five days, not including shipping time back and forth.
But I'll gladly go without my tablet for a while if I know there's a good chance they'll either repair or exchange it.
So keep your fingers crossed for me!