After I canceled my vacation leave , I would expect these days to be added again to the "taken" amount under Vacation Leave? This is currently not the case..

Eg:

(1) Total amount  (available) days of vacation leave = 25 days

(2) Requested 5 days in January -> approved -> (available) days of vacation leave = 20 days

(3) Requested 10 days in May -> approved -> (available) days of vacation leave = 10 days

(4) Canceled the approved May leave request -> would expect  (available) days of vacation leave = 20 days (but it is still displaying 10 days)