Contact us immediately if King Of Extensions is at fault. See the RETURN POLICY for specific information on the exchange policy. If we are at fault a King Of Extensions staff member will assist you in making the exchange seamless. Human hair extensions are considered to be a hygienic product. Federal law prohibits the return of human hair products that have been used and that includes “trying them on”. For sanitation purposes, used extensions cannot be returned for refund or exchange (no exceptions). Please read the return policy thoroughly before making your purchase.