Love playing tile games!
Try Eggertspiele again. It took me a couple of tries to get a response on something, but they were really cool about it. I just had to follow up with them. Also, make sure you received their auto-reply message to ensure you had the correct email address. I remember reading somewhere that someone got their email incorrect and once they fixed it they got a reply.
Juse use their .de address instead of .com so firstname.lastname@example.org.