Please e-mail us ( motors@kipoint.com.tw ) if you receive a defective item or any item needs to be repaired or the item is not what you need. The item must be in the original packaging with all the accessories included and need to advise tracking information. Once we receive the return parcel, will arrange the replacement or refund the payment. Have you got any question, please do not hesitate to contact us.Best regards, Taiwan - Motors Service Dep.