Sometimes China Post is a little slow, I hope you can wait for the package, thank you. Please check your items when you receive the package. No claim will be paid for deliveries over 60 days. Please report the problem to us and provide clear pictures or videos to confirm the problem, please tell us your model and year, our customer service staff will track the problems you encounter based on the information you provide, if you can provide these in time Clear and identifiable information, the faster we solve problems. But if the problem is ours, we will definitely be responsible for it. As sellers, we are serious and responsible. We focus on all kinds of motorcycle accessories and have our own factory. Sometimes it doesn't work after installation. Maybe there is a problem with the wiring. We have a team of professional technicians for each component, we will assist you in dealing with and resolving these issues. Your feedback is very important to us, if our service makes you satisfied, we hope to get your positive comments and encouragement. Our store pursues excellent quality, but sometimes there are some negligence.