I've been with two providers so far (one, several times), come to find out, neither of them will provide references.  

As such, my choices for new encounters becomes somewhat limited.  Is there a protocol for asking providers whether they will provide references?  Can anyone suggest some VIP providers in the Schaumburg area who also give references?

In truth, I prefer to find something good, and stick with it.  But, occasionally a lady will surface that seems to check off all of the boxes.  I'd like to have the option to visit them, whether or not they require references.