Well, here's hoping there will be no problem because I'm about to send 2 pairs back to STP. One pair I had ordered 2 pairs of the same shoe to see which fit better, the other was seemingly the last pair they had in that shoe and I was taking a stab to see if the 9.5 would fit. Sadly it didn't. The back of their shipping receipt says in big letters: "There is no need to call for a return authorization." Of course, I treated the shoes well, only wearing them on carpet.