Look up YouTube videos on fastest max level on RS3. You can get all your levels to max level with micro transaction loot boxes in a very very short time for a very very large amount of money.
PSN (PlayStation Network) is available in 73 countries.
It was PSNow (PlayStation Now, their game steaming service) that was only in 19 countries. PSNow was merged into PlayStation Plus as the Premium level package, and is in 30 or so countries.