Price set to €0.00 for Products not available for purchase online

Hi, I have the Pro version and I am implementing it on my company site at the moment.

Some of the products on the website are not available for purchase online because they are personalized/customized and what the customer wants will affect the price too much, the variations would be massive.

So these products do not have a price assigned to them and as such none appears normally and it can’t be added to basket etc and the customer is instructed to call or email us for a quote.

When I apply the Role Based Pricing though to a category that one of these products is in it sets the price of that product to €0.00 and allows the customer the products to add to basket!!

Obviously this isn’t good, can you help?