Not working

I have a membership website in the making and I want to display a certain content only if the user role is “Subscriber”, NOT when the user role is “Premium”, “Test Premium” or “Ad free”. I tried all possible variations with “is”/”is not” and “AND”/”OR” related to user role. None is working. Why??? There is no logic in this. I was about to get the premium to get the browser language setting but as this plugin no even works with such a simple logic I will rather get the “If-So”.