I wonder if the listed price of $17k is one of those "scams" that no one can actually achieve. Kind of like when a car dealer has a vehicle (I'll just make up numbers to make it easy) and the vehicle is $25,000. They list it as $20,000 on sale because there is $1,000 off for being a student, and $1,000 off for being military, and $3,000 off if you use dealer financing. But then you get there, and they say, well if use the student discount you cant use the military discount. Plus, if you use either of those discounts the vehicle falls below the threshold for dealer financing, etc. Long story short, they add all possible incentives together, and take it from the sticker. When in reality, it is impossible to qualify for all of the discounts. I don't like that tactic but it is very popular.
So in your case, using that very convoluted example, they may be quoting you one price because you don't qualify for any of the promotions (or they simply wont honor them because of the situation of taking your unit back?) to get you to the $17k number.
As others have said, print it out, and try to use it, see what they say. Then you will have to determine if you still want to do business, depending on their answer. I did have an experience several years ago where a car dealer had a sale banner on their window that ended 3 days before we were in there. They quoted the price and terms, and we said, "what about that ad over there?". They said, "That add expired 3 days ago but since it is still prominently displayed, I'll tell the manager you want that deal.". The manager honored the deal, and while we were standing there someone came out and took it down. All depends on the way they do business, there are some that would have said the deal expired so we wont honor it. So it wont hurt to present them their own advertised price and see what they say. Good luck
2015 Rockwood Mini Lite 2504S
2015 Ford F150 Ecoboost