I can't say this is a surprise to me. When I lost Bruce and was searching for puppies I sent emails to at least 5 breeders who never responded, and I ended up giving up. In some ways I"m very thankful they didn't and I ended up with a WindyCanyon pup. Brooks will be 9 next month, and he's been an amazing dog, I could not have asked for better.
I hope your search goes well. You may want to contact Anne, she knows a lot of good breeders and may be able to help you find someone in your area.