I used to put 4-5 hrs daily and also spend my hard earned money just to support Pubg but I had to stop because they really took their time to address this issue.
Most of my friends used to play Pubg on a daily basis. It is a shame the devs let things like this mess with the system.
When I tried using VPN I got a "incorrect password" response, but I never got banned. If you've been banned because of using VPN then that is a major dickmove from Majong.