Is it possible to decrease the usage in Metered Billing Plan ( using Laravel Cashier)

[binumathew]

Hi
I am creating an appointment application where users billed per appointment, sometime the users will cancel the subscription. In that time we need to decrease the usage, is the right way to do it? if so is there any facility for that in Laravel Cashier?

In the Stripe Documentation, it says about an Action ENUM, . Can we use that?