Can a customer buy more than two iPhones at one time: What Apple Store 'warning' says
Apple has implemented a strict two-unit cart limit on its online store, prohibiting customers from purchasing more than two iPhones of the same model or two different models in a single order. This rule applies to all iPhone models currently listed for sale and extends to both online and brick-and-mortar stores. The maximum purchase limit of two units per customer is enforced to prevent gray-market resellers and scalpers from manipulating inventory and maintain the integrity of the retail ecosystem.