B2B for WooCommerce

A role based user can get a discount based on their role.
But if I make a coupon meant only for consumers, I would like to make sure the B2B customers cannot get the discount from the coupon on top of their role based prices.

As I have both B2B and consumers as customers, I would like to make coupons available for consumers only.

I hope my explanation is clear.
Thank you!