you agree that promo codes : ( i ) must be used for the intended audience and purpose , and in a lawful manner ; ( ii ) may not be duplicated , sold or transferred in any manner , or made available to the general public ( whether posted to a public form or otherwise ) , unless expressly permitted by uber ; ( iii ) may be disabled by uber at any time for any reason without liability to uber ; ( iv ) may only be used pursuant to the specific terms that uber establishes for such promo code ; ( v ) are not valid for cash ; and ( vi ) may expire prior to your use . 
