You don't need a connection with the bank to use the services of Mollie. You either use the payment services of the bank or the payment services of Mollie. As Mollie we can offer you a wide arrangement of payment methods which the bank can't offer you. For an overview of all payment methods and the costs, please click here.
You do need a business bank account to make use of our services. For more information about the business account rule, please click here.
See for more information about setting up your Mollie account: How do I sign up for Mollie?