If the wrong pattern was sent, LinerWorld will give you a Free winter pool cover at the end of the swimming season, if you decide to keep the pattern that was sent. All you have to do is call, or e-mail linerworldsupport@comcast.net in September of the same year and we will send you a Free winter pool cover (a $100 value). If you simply do not want the "wrong" pool liner pattern, then contact our customer service department. Thanks for your patience.