I have a 2014 QX60 AWD Hybrid, bought it back in Feb 2014. I haven't had any problems with it at all. Your refueling issue sounds unique -- I haven't read any posts from any owners with a similar problem to yours. Sorry.
Good thing to suggest and possible of happening, hopefully someone from the dealer will do this. I've always found it to be of great value to develop a good relationship with a service adviser as that can go a long way.Maybe see if someone from the dealer will ride along next time you fill up so they can observe. I doubt they did anything but opened the fuel door and looked in..