Do Combed Subscriptions Bill all at Once?

Do Combed Subscriptions Bill all at Once?

I have a customer who has a subscription as follows:

PLAN 1 - Base                   $20
PLAN 1 - Addon 1 (x2)      $2
PLAN 1 - Addon 2 (x5)      $5

Will stripe charge the customer a combined amount, or will it bill them seperately for each plan ($20 + $2 + $5) or just $27?

Thanks.