RPR has their own RPR National Helpdesk which is geared for RPR questions and available 24/7/365 out of Omaha, NE.
Their phone number is 877-977-7576.
If you prefer a web-based solution, the RPR Help Desk online can assist: http://support.narrpr.com/hom
RPR also offers online webinars, video learning, live training and ebooks. http://blog.narrpr.com/training/