While I totally agree that usually a mention of rates is cause for no appointment.
But,I have offered discounts as well for Date-Check Members and I had a gent who was not sure if the discount was already taken off the rates that are posted.I explained the rates that are posted does not include any discounts.I rather it be clear before meeting than be awkward in person.Every lady is different some might not respond to a question regarding a P411 or Date-check discount and some will.
I will respond if the guys are P411 or Date-Check verified with okays but I will not if the gent is not a member of either one of these sites.
So,when in doubt ask if you are not sure I agree send her message through p411 if there is indeed some doubt.