How do we control the wholesale price, contract length, delivery SLA etc sold via the platform?

How do we control the wholesale price, contract length, delivery SLA etc sold via the platform?

The platform is a marketplace for retailers and wholesalers to trade services. Whilst we do have a CWP reference product and reference terms, no member is required to use these and as such any wholesale member is able to set their own price, contract length and delivery SLA from products sold via the platform.