- Third party resellers and dealers are not authorized to promote, market, advertise, offer to sell, or sell any Performix products through Amazon.com, Walmart.com or any other third party marketplace. For Amazon.com and Walmart.com marketplaces, Performix LLC is the only official authorized seller of Performix products - Performix LLC actively participates in the Amazon.com Brand Registry Program and similar programs to prevent the advertising and sale of unauthorized, unlicensed, infringing, and/or counterfeit merchandise. Any unauthorized sales of Performix products on Amazon.com, Walmart.com or any other third party marketplace will be removed upon discovery. Ads from online sellers offering any auctions or advertising sales will also be removed - Performix Products purchased on Amazon.com, Walmart.com or any other third party marketplace from any seller other than Performix LLC will result in voided warranties, no money-back guarantees, and no customer service.