sounds like the store did right by you, and you learned a lesson in handgun choices. Not being snotty - I've been there too until the past year.
Not many stores are going to refund your shipping. I know the "No BS Warranty" guys do, but its no doubt cheaper than them doing QA on every cheap norc gun.
From experience I know that Wolverine will do right by their customers. Doesn't mean you are going to be 100% satisfied all the time, but you also aren't going to be left with a lemon, or left hanging for weeks or months in trying to get a reply, let alone resolution.