manager_highvalue

[tribal terrace]

hi! well usually it doesn't work that way, the default behaviour of our Subscriptions product is that after step 3, the customer is now on Plan B. At the end of the billing cycle(like the end of the current month), the next invoice will charge for the upcoming month on B, plus a prorated amount (the remaining days in the previous month spent on B, minus the cost of those days on A)
If that payment fails then the subscription becomes past_due and you settings for subscription recovery happen.

In your case probably what you're looking for is to use https://stripe.com/docs/billing/subscriptions/pending-updates so that the subscription does not actually move to plan B until the charge succeeds.