Samsung Pay Watch Plug-in is unavailable in Belarus

[jjj-bo]

Hello. When I try to setup samsung pay in Galaxy Wearable app it sends me to Play Market watch plug-in page, which says "the app is not available in your country". I copied apk from my old phone, it's installed and seems to be working, but I still can't update the app. Is it a samsung's failure or mine? What can I do to be able to update samsung pay watch plugin?

My watch: Galaxy Watch Active 2
My phone: Xiaomi Mi 11 Lite
My country: Belarus
Also: No root and bootloader is locked
Play market page: 

 Red text says "Not available in your country."

[strawberry cake]

@jjj-bo 

hello

not all countries have Samsung pay access

Belarus has Samsung Pay as checked on this linked

so it is either the phone or the watch which was not from Belarus, but from a country which Samsung Pay is not available 

please check also your Country used on Google and Samsung Account 

😉

[jjj-bo]

Hello, strawberry cake. 

My watch used work fine before. And the app is not available in play market(I don't think play market knows which watch I use).

My phone, in turn, is relatively new, and I've never been able to install SPay plugin from play market there. But www.mi.com/global/verify says that it's official global version. 

That's either not a hardware country issue, or I don't know how how to check it. Do you happen to know what I could check apart from phone IMEI?