The buyer has to register with gm. If the buyer lies, it’s fraud
The agreement is between gm and the buyer. The dealer merely allows the transfer through their dealership
It doesn’t appear the salesman could have done this without prior knowledge This is part of what is required to register for,the discount
Upload military documents or check military records
Seems like the buyer is pretty involved in registering for the discount.
So the buyer must register with this Id.me site which is associated with the federal government. If op committed fraud when registering he may have a lot of issues more serious than this $600 being discussed.
And this is where it all gets fuzzy. With the military discount program the price is set by the manufacturer. The dealer can add $75.00 for doc fees to that price. There is no $600 discount because there is no discount listed The price is what gm says it is. That is why I believed it to be a rebate rather than the military discount program
Like usual you jump to unsupported conclusions. It isn’t clear where the $600 even comes from yet you have this solved. Good work Sherlock