Refund: we accept 100% refund when the product has quality proplems or any unexpected mistakes.However buyers are requested to send the products back to our office.   Feedback: Customer satisfaction is very important to us. If you are satisfied with the items you ordered, please leave 5 stars feedback. If you are not satisfied with the items you ordered, please contact us before leaving negative feedback. We can work together to resolve any dispute.   Thank you very much for visiting us! Enjoy aliexpress shopping!!