Thank you to all who helped me find the solution. The fix was easy after I passed on the info from Mr. Billy Cox to Camping World. Earlier, I had received a call from CW telling me they were in contact with Thor and were told there was nothing they could do as it was the design of the system. After I expressed my displeasure and my unwillingness to accept that answer I posted this thread and Billy Cox quickly answered with the solution, which, by the way fixed the problem. Both filler necks and accompanying hardware were installed wrong putting the vent at the bottom, therefore, not letting the air escape as you fill.
I have not tried it yet as it is STILL at CW, but I was told by CW it worked perfectly. We'll see???
Thanks again to all.