buy or sell leave.
From day one, you get 25 days' annual leave (not including bank holidays), if you're full-time, with an extra day after five years, another day after ten years, and 28 days in total after 15 years’ service. If you work part-time or shifts, it'll be pro rata.
You can also buy or sell up to five days annual leave every year, to take that extra holiday or get paid for the days you don’t use.