What should I do if I bought the wrong model of Guanfudun? Can it be exchanged?

A: If you purchase the wrong model, you can exchange it. The handling method is as follows: ① Unopened: If the film has not been opened yet, it will not affect the secondary sale. Contact customer service to apply for an exchange (pay the price difference or get a refund depending on the specific model), and the shipping cost will be borne by the buyer (if it is not a quality issue). ② Opened but not covered with film: If the package has been opened but not covered with film yet, and all accessories are complete and do not affect secondary sales, please contact customer service to negotiate an exchange. ③ Already applied film: If it has already been applied to the phone and cannot be replaced (the film cannot be resold after application), it is recommended to purchase the correct model again or give the wrong film to a friend or family member who uses the corresponding model of phone. Prevent buying the wrong model: ① Confirm the mobile phone model before placing an order (Settings → General → About This Device → Model Name); The iPhone 17 series has four models: iPhone 17 (6.1), iPhone 17 Pro (6.3), iPhone 17 Pro Max (6.9), and iPhone Air (6.7). Films of different sizes are not interchangeable. ③ Current compatibility of Guanfudun: iPhone 17/17 Pro/17 Pro Max/Air/16 Pro. Select the correct model in the product options when purchasing. If you are not sure about the model, contact the customer service and provide the phone model. The customer service will help you confirm it. Note: ① The films of iPhone 17 and 16 Pro are not interchangeable (different in size and camera position); ②Guanfudun Qu (launched in September 2026) is compatible with the curved screen of iPhone 17 Pro/Pro Max/18 Pro/18 Pro Max, which is different from the current 2.5D Guanfudun model; The customer service of each platform store can help you confirm the model. It's more reliable to ask before placing an order.