If you want to upgrade your free trial account to a paid plan:
1. Click on the account link at the right top of your Bookeo admin interface
2. Click on Pricing and Subscription
3. Choose your plan and click on the Subscribe button
4. You will be required to input your credit card details. You will be billed at the time you subscribe to a paid plan, and every month thereafter, until you cancel your subscription.
If you subscribe on the 30th of December, you will be billed on the 30th of January, the 28th of February, and so on.