{United Refund )How do I know if my United ticket is refundable?

If you book a flight at least seven days+𝟙-𝟠𝟝𝟝-:𝟟𝟛𝟠-::𝟜𝟚𝟞𝟝 or 【+ 𝟒𝟒-𝟖𝟎𝟎||𝟎𝟓𝟏||𝟔𝟕𝟑𝟓 】before departure and cancel within 24 hours of booking 【+𝟙-𝟠𝟝𝟝-:𝟟𝟛𝟠-::𝟜𝟚𝟞𝟝】 (𝙾𝚃𝙰)】), or 【+ 𝟒𝟒-𝟖𝟎𝟎||𝟎𝟓𝟏||𝟔𝟕𝟑𝟓 】