We need a payment method on file because this is how you'll get paid for the physical products you sell within your gallery storefronts. When your client orders products through their gallery, you keep 100% of the profits from the physical products you sell, and we pay you through the Stripe business account you have linked to your Picsello account.
Once you offer physical products to your clients, you can also offer print credits - when offering print credits, you'll always keep 100% of the profits made, but there may be some lab fees associated with the physical products that we'll need to collect from you. If you're curious to know more, the specifics are detailed in our print costs article.
We hope you enjoy the physical product offerings we have for you at Picsello! Happy selling!