Mike there are a few things you can try before you decide to send it back. One is to check to see if the lock plate connecting screw (goes through left side and comes out right side) is flush with the right side, sometimes as little as a half turn of the screw can make a HOT not work right. Second the screw that is under the top lever could be one pull turn too tight. This screw should be orientated to the top tang in that the head is tapered like the top tang and one turn too much and it could pull the trigger plate housing up and make the trigger/s too close to the sear/s or even touching them.
If you could take close up pictures of the gun opened showing the screw with the lever to the right. and also of the right lock plate.
You have a special ordered gun with ejectors, beavertail for-end and HOT and if the price was right I would negotiate about the trigger if it was not disclosed when you bought it.
Jent is a pessimist when it comes to a HOT, but it increases the price of the gun by $500.
Most of the problems with a HOT not working is from someone that doesn't know about them and taking the gun apart and not putting it back right.