So when you saw the itme package box isSevere extrusion or deformation, please help make a video of open thepackage. This will help us save more time to confirm the problem and make refund. If damage item by shipping, the shipper will bearsome lo. 2: If your post agree with you open the package before sign the item, you can check the item weather complete first, if it have any problems, you can choose Rejected the parcel. And please contact us at the first time to let we know the parcel is damage. How to do if you get some problem and can not be slove by yourself ? 1: When you have the problem how to use the item, please leave meage into the order, our worker will reply you in 24 hours. We will on work from Monday to Saturday Chinese BeiJing Time10:30 to 17:30. In this time you can ask us the technical questions. We will have engineer online to help you slove the problem. If we can not reply in 24 hours, please send more meage again. Other times we will just reply the meage, if on Sunday, please leave us your question into the order or wait on Monday to contact us online.If you think your question is not easy to slove, please find a free time to keep online to ask us to help you. 2: All the items will take a 1 year warranty, in this year if you find anywhere no working, please contact us online, we will help you slove the problem as soon as poible. In this way we will offer you some questions, please kindly to reply us, this will help us fast confirm the problem. What problem can open the dispute ? 1: When after we talk about the problem, we will tell you how to do with the item. Sometimes if real have problem we will make some refund, or full refund. This all need you contact us to talk about the problem first, do not worry, any problems we will help you slove it first, if we can not help you slove the problem for a long time, you can open dispute to ask refund. 2: Some of the item is expensive, and you have choose the air mail shipping to send out the item, so please know the item will on the road for a long time, no one can promise the item can be intact, some times the parcel have somewhere deformation, please understanding about this. If you can not accept any deormation, please choose the Expre shipping way, like the FedEx,DHL,TNT,EMS,ARAMEX to send out the item. We will take a strong package for you. 3: When you get the problem of the item features, Please don't open dispute first, feature problems most because of the country reason or the technology reason. So contact us to help you slove the problem will be best !