Ordered Studio 15 Got 14

So I ordered the Resolve Studio 15 from B&H photo which is listed on the web site as an authorized dealer. When I received the activation package today the cover states Resolve Studio version 14. I called B&H and they said I could return it but I shouldn't worry about what the package says, The 14 Activation code will work with the version 15.
So when it comes to this type of thing I am not very trusting. I don't want to wait a week since they make you return the product first. Is what they are saying in fact true?
So when it comes to this type of thing I am not very trusting. I don't want to wait a week since they make you return the product first. Is what they are saying in fact true?