Hey, im based in north america as well, and i had an in person consult with Z a few years back, maybe 2017 or 2016
I called during operating hours and asked if the receptionist spoke english (to which she replied "a little") so i asked for a consultation regarding a chin wing and she asked me to call back in an hour or two, so i did, and again went through the same routine. This time she put me on hold.
A few mins went by and z answered the phone himself. I booked a consult for a chin wing promptly.