I was basically told the same thing about the Epson V600 scanner, even Epson didn't have it in stock. Everything slowed down or stopped completely during the peak of the pandemic & now companies are struggling to keep up with production. I found one in a 150 mile radius, luckily it was only 30 minutes away & not a place you'd normally think of them carrying it, which is probably why I found one.
You might try a smaller camera store. A few years ago I could not find a Lee square filter system. I could find everything except the mount for 77mm. Finally contacted a small camera shop outside Philly, they had 10 in stock when it seemed no one else in the world had it.