Each paid plan comes with a number of free SMS invites each billing period - view fair usage policy.
What happens if I use more than my plan allows?
If you exceed your free SMS quota in a billing period you'll automatically be billed $0.15 / €0.15 / A$0.20 / £0.10 / ₹10.00 per additional SMS sent. This is to cover our costs and we pass them directly onto you.
You can view and manage your SMS usage at any time in Profile: