If you receive your package and it is not what you ordered, please contact us immediately and provide us with the following:Pictures of the item(s) you received together with the delivery note, and please make sure that the details are clear and visible. We will do our best to assist you further.In addition to the outer packaging, our products are additionally equipped with an internal protective film. Please inspect the package upon delivery. If items are missing or damaged, please contact us by sending an email to support.us@dreame.tech within 48 hours after receiving the package, and our customer service will reply to your email within 1 business day. To protect your rights, you are highly recommended to shoot a complete unboxing video and check the items according to the packing list.