On a credit card payment method (Paypal, Stripe), here's how it looks on the public interface :
Customers choose their product(s), then proceed to payment by entering their details directly on the platform.
On a proof-of-payment payment mode, here's how it looks on the public interface :
The respondent takes note of the information on the proof of payment description (link, RIB, address information...) and then adds a proof of payment in the form of a document (pdf, image).
The mandatory comment can be deactivated in the proof of payment parameters.