It's actually 4 brands, or maybe more.
Deye makes inverter products,
some of those products are sold under an agreement in US/Can/UK/Pakistan/- S.America (per
@PanGirl)
some products are sold in other jurisdictions under other agreements,
some are sold directly by Deye (I expect)
If a unauthorized sale is logged, this is between Deye and those distribution companies to work out.
There can be lots of extenuating circumstances
- you bought your unit before the agreement took effect,
- you own a boat, and you install a new Deye while docked in Taiwan then sail to LA and dock, connect to local internet - your inverter gets bricked?
- you live in the EU and build a moble system in an overlander Steyr unit to travel through Canada and up to Alaska - only to find when you arrive in N.America your inverter shuts down. WTF - no notice, no chance to explain the circumstances, short duration trip and off to Mongolia ...nope just shut you down period.
I can only believe the motivation for this is some behind the scenes fight going on between Deye and their distributers - why chance pissing off customers, why put doubt into people's mind about the viability of all Deye products? If the word gets out that "they can remotely shut you down any time they like, without notification or anything" - customers will go with some other brand and not take the chance of getting bricked.