Do not buy any Navigation DVD updates from a website called Audinav.net

I bought the latest edition dvd for my 2005 A6 and there are no street names whatsoever. ??? Whats the point of updating or any nav period if there are no street names. They told me to ask Audi? Audi has nothing to do with their dvds. I lost 60 bucks. The also called me an $!!hole for asking for a refund. I put my old one in from 2009-10. BUYER BEWARE