Defender sold many lines they were not authorized to sell, for many years. Even in the 1980's you could go into Defender's first New Rochelle store, and there was a big sign up at the electronics
counter about certain lines that could not be returned to the store--but had to be returned to the manufacturer for any warranty issues.
Those were all products that Defender was not authorized to sell, but managed to carry "gray market" anyhow.
This is not unique to Defender, or anything new. So you pay the price
to a conspiring, ergh, authorized, dealer, or you find another product.