No surprise here ….
COVID redux has exascerbated it for sure, but far too many distributors and / or manufacturers had crummy post-sale or tech service even before the pandemic.
That is precisely why I chose BRYSTON as my digital media player and dac as an OEM supplier, Their tech support (and robust build quality and supporting manual ) is top shelf and always there for me ….. full stop.
As an example of the expanding contrasting norm, there are numerous digital streamers etc. that may be sold domestically; but when you check them out, their tech support is actually sourced offshore ( e.g Taiwan) that can only be contacted by a digital mailbox that frequently exhibits your black hole experience.
Yup, the response seems to be at glacier speed or continental drift , if any response at all.
The support workaround is to buy from a local experienced dealer and build that relationship.
Caveat emptor