Once you send the form you can start straight away. If you book your year afterwards, your data stays.
Your year renews by itself. Two weeks beforehand I let you know by email, and on the renewal day I take the price for another year from your stored payment method. You can cancel at any time with one click and use your access until the end of the year you have paid for.
You pay online with Stripe right away, by card or SEPA direct debit, and there are no further costs.
As a consumer you can withdraw for fourteen days.
As a business you have no statutory right of withdrawal.