"Those who report are f2p players"
Obviously, because f2p players TEST the game before thinking about investing.
"Continue with chinese investors"
Does he think they'll be investing several thousands every single time? They'll get their stuff ready and there will be no more income.
And if he knew anything about mobile games, he'd know that "europeans" easily compete in these games with investments.
He should try and play some mobile MMORPGs and see for a fact.
Server just opens, some guy plays for an hour and invests like 5K in the game to stay on top and there's a lot of whales competing for ranks.
Sorry to say but this "owner" is one of the dumbest ones I've seen.