Email has always been hit or miss there. Recently it’s more of a "miss". Shows, like the one going on right now in FL, are a lot of prep work and overtime for such a small company, and everyone there shares the burden.
I emailed last week asking about stock PCs for their amps and frankly, they should ignore that one (I didn’t realize the upcoming show at that time). I can always call later. If it's important enough - always call.
Then there are ever-evolving spam / junk filters - this one hits me a lot, trading on that other site. I guess a good audiophile trading site with decent on-platform messaging can only exist in heaven (Facebook has good messaging but is rife with scams).