Will you tell me in advance if prices or terms change?
Yes. Price changes are announced 30 days before they take effect, and amounts already paid are charged at the old price. For subscriptions, the new price applies from the first billing date after the notice period, and you can cancel before then. Changes to the terms are announced 7 days in advance (30 days for changes unfavourable to members), and material changes to the privacy policy at least 30 days in advance.