A player with Brain Rook membership level can use up to 35 vacation days a year.
After some vacation days are used, it is possible (twice a year) to get some extra days (during the same year) if the membership is renewed by another year (or longer period) - 10 after the first renewal and 5 after the second one.
(hide) If you don't want other users to know what you are doing you can change into cloak mode in Settings (paying members only). (pauloaguia) (show all tips)