As stated above it does come with two cam buckles but I tried putting one on the strap and it doesn't close all the way no matter how I installed it. The part that hinges doesn't close all the way down on the strap. I emailed them and they got right back to me and I still had questions about it and I sent a photo with my question tonight so I'm sure they'll get back in the morning with a response. I'll post what they said when I find out.
I just checked their website a while ago and they are sold out of both straps and the lanyard already. Looks like it's been a popular product launch.
I've been informed that the cambuckles may not be included in the future. There may be issues with them like the one you are experiencing. Perhaps only the first batch/sets will have them.
If there's a better way to "lock" the camera to certain location on the strap, I'd be really interested in it. With my current strap (Optech) if I want it in the front, I have to use my hand. If I want it behind me, I don't have an option.