[South Korea]
PUBG Mobile South Korean official app is only serviced in South Korea. You may link your social media accounts to the game but the game won't be playable outside of South Korean territory.
This applies the same to PUBG Mobile serviced in other regions. Thus, please understand we cannot provide help for PUBG Mobile from other regions.

[Japan]
PUBG Mobile Japanese official app is only serviced in Japan. You may link your social media accounts as Google・Facebook・Twitter to the game but the game won't be playable outside of Japanese territory.
This applies the same to PUBG Mobile serviced in other regions. Thus, please understand we cannot provide help for PUBG Mobile from other regions.