For the user that skims the page, the payment form is difficult to understand. "Why would the payment form be placed here?" The user must understand that this is a simulation of what they will see on their own page.
At first glance, the user might think that these prices align with the costs of Didacte, which could be a deterrent.
Find a more simple way of illustrating the simplicity of payments and transaction processing with Didacte.
You could also use a calculator to show a potential trainer's revenus through selling their online courses.