Millions of iPhone users could be eligible for payouts, following the launch of a legal claim accusing Apple of secretly slowing the performance of older phones. Justin Gutmann alleges the company misled users over an upgrade that it said would enhance performance but, in fact, slowed phones down. He is seeking damages of around £768m for up to 25 million UK iPhone users. Apple says it has "never" intentionally shortened the life of its products. The claim, which has been filed with the Competition Appeal Tribunal, alleges Apple slowed down the performance of older iPhones, in a process known as "throttling", in order to avoid expensive recalls or repairs. The models covered by the claim are the iPhone 6, 6 Plus, 6S, 6S Plus, SE, 7, 7 Plus, 8, 8 Plus and iPhone X models. It is an opt-out claim, which means customers will not need to actively join the case to seek damages.