[About delivery and after-sales problems]: If you buy any goods from our company, if there are quality problems or underdelivery, please contact us in time, we will solve the problem for you ASAP and give you a satisfactory answer. 1. If you find any products with functional failure or quality problems within 7 days of receipt, please contact us immediately. Overdue will not be accepted, and false reports will not be accepted once verified. (If there is a missed or wrong delivery, please say sorry first. There are too many protective film models, and all need manual distribution points. Although there is strengthened management, there is still no guarantee that there will be no errors. Please understand; the handling method we give is to make up the price difference and reissue it when ordering or purchasing next time.) 2. The buyer is dissatisfied or not good to sell for the reason that the product actually has no quality problems, so we will not return or exchange the goods. 3. If the returned product is not fully packaged, the accessories or related materials are incomplete, it is repaired, modified without authorization, not used according to normal methods, stored, beyond the product warranty period, the returned product is labeled, and there is fraud, we will not bear the return, 4. When the customer finds a product quality problem and returns the goods, please return it to the company by ordinary courier. The customer pays the freight in advance. The company will subsidize the actual cost according to the courier list after receiving the goods. If the customer returns the goods directly without communicating with the customer service, we will not accept it. Thank you for your cooperation. Communication starts from the heart.