White Label offers your business far more features than a regular API does. When you have your own payment system on your website, your business becomes much more attractive to customers.
Besides, you can properly manage all marketing mechanisms and successfully hold customers on your website.
How to enable White Label - https://plisio.net/faq/how-to-enable-white-label
Does the fee amount change with White Label? - https://plisio.net/faq/does-the-fee-amount-change-with-white-label