How can I combine multiple payment service providers? Max Stolle March 26, 2019 14:14 Updated Follow In billwerk you can combine different payment service providers. You can activate any number of Black-Label providers at the same time, while only one White-Label provider can be selected per payment method (Credit Card, Direct Debit, On Account). Related articles Which payment service providers are supported? What happens to existing contracts if I activate another payment service provider? BS PAYONE Stripe How does the payment process work with billwerk? Comments 0 comments Please sign in to leave a comment.