I don't have Facebook or Instagram so I used email. Response was very good, took no time at all to sort it out. The contact form on their website looks like it works but it really doesn't, as that is how I first tried to contact him.
crottsknives@gmail.com
Spurly - it would be well worth your time to read this thread from the top. There is a ton of great info provided by a couple of guys on Crotts and Dozier knives in here.