I received a pack of 60 ketone strips that were all bad. Customer service refused to replace them despite putting me through extensive steps of testing and video taping. When I successively demonstrated the strips were bad they said oh we can send you a new meter that has 20 ketone strips with it. So basically they don't want to replace all the strips because of how expensive they are. They prefer me to eat the cost of their defective product. Other packs I have received in the past worked fine but this pack was definitely bad and not able to detect ketones. To be so cheap and not replace a clearly defective product just tells me they do not put the customer first nor do they value their repeat customers. Really pathetic guys.