# Payment Before starting with this document, you should have a grasp of the concepts of prepaid and postpaid users in order to better understand the objects using the payment feature. At GreenNode Service, we provide multiple payment methods to meet the demands of payment and resource usage in various forms such as: * **Online payment** * **Payment of POC resources** * **Credit hold** * **Automatic invoice payment** **In addition, the payment feature at GreenNode supports multiple resource payments at once, therefore:** * Payment history: * Record the amount at the time of payment for multiple resources. * Record information of invoices incurred corresponding to each resource in that payment. * Review payment history here: . * Invoice history: * Record invoice information corresponding to a specific resource. * In this case, the system will generate multiple invoice heads corresponding to each resource. * Review invoice history here: . * When applying a coupon: Refer to detailed instructions on using coupons here. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.vngcloud.vn/vng-cloud-document/billing-management/experience-with-billing-and-payment/payment.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.