I recently bought a pair of high heels from Macy's, wore them for about 30 minutes around my house to make sure they fit and are comfortable enough to keep. They gave my feet blisters so I brought them back today only to be told that since they are worn I cannot return them? I'm surprised because the receipt reads that if not completely satisfied you can return for an exchange or refund. I looked at the bottom of the shoe and they show a small but very minimal amount of wear, probably from the hardwood flooring but definitely not the type of wear from having worn the shoes outdoors. Is this customary for Macys?