Are there any exemptions under Strong Customer Authentication?
If your online purchase is considered low value or low risk, it’s likely that you won’t need to confirm it's you (you’ll be prompted if you do need to).
Recurring payments - a series of payments of the same value to the same merchant (e.g. subscriptions and membership fees) are exempt after the initial set up. However they are not exempt, where the amount changes each time (e.g. a utility bill).