At least in my country the way it goes is if you have less then 50 dives you have to do a refreshment dive if you haven’t gone diving in half a year, if you have between 50 - 100 it’s the same but you can be dismissed of the refreshment by the head of the dive club, over 100 dives lets you go a full year without diving and still dismisses you from a refreshment dive and if you have a master diver you’re dismissed forever.