[Bancontact] Can I add a Pay button to my website without using a Payment Service Provider (PSP)?

Documentation Bancontact
1

The Bancontact distribution model is set up in such a way that adding a payment functionality can only be offered by our partners.
If you would like to become a PSP yourself, please leave us a message using the contact form.

https://www.bancontact.com/en/faq/can-i-add-a-pay-button-to-my-website-without-using-a-payment-service-provider-psp