Your best option is using the Diamondback or Raleigh corporate codes that around out there.
There are several excellent models under $800. Heck you could get the 2017 Merit 3 for $750 shipped to your door. It's a crazy deal for a thru-axle disc road bike with Shimano 105 11-speed and TRP spyre brakes.
https://www.raleighusa.com/merit-159
Merit 2 is $479
https://www.raleighusa.com/merit-152
The 2016 model Merits are on sale for even less.
If you don't want disc you can get something like the Super Course for $569:
https://www.raleighusa.com/merit-152
You could even get a fendered Clubman for $659:
https://www.raleighusa.com/clubman-alloy-1420