How long in advance a student can cancel a lesson

[Lily 34]

Hi teachers,
As my topic, I would like to know how long in advance a student can cancel a lesson.

[Edward 4]

I remember it's 4 hours in advance.

[Alia 9]

@Lily-34 They have four hours, and after that, they lose credits, so they can technically cancel at any time if they want to lose the credits or not.

[Deborah 0]

@Lily-34 Students have limits and penalties for cancelling, HOWEVER, the algorithm can adjust lessons whenever it pleases!