I've never had a problem. We bought this outdoor fence thing a year ago, there was nothing wrong with it. We boxed it back up, brought the receipt. We just told them it wasn't going to work for our situation and they took it back, no problem. We also had some reptile products awhile back ago without a receipt....these products weren't open and we knew we weren't going to use them. They took those back for store credit, no problem. Petsmart is great that way.