Alibaba Cloud CDN (CDN) and Dynamic Route for CDN (DCDN) provide a 5-day money-back guarantee to resource plans. However, you are not eligible for the 5-day money-back guarantee if your resource plan is already in use or the purchase was made more than five days ago. This topic describes the eligibility of money-back guarantees, the procedure for applying for refunds, and how refunds are issued. For more information, see Rules for canceling the subscription of an Alibaba Cloud service.