You can choose between either a subscription plan or a one-time-payment here. One-time-payment is recommended, if you want to process a large CSV file or if you prefer to use your requests on an irregular basis. You can charge your account with the required amount of requests at any time. Requests bought with one-time-payment can be used within one year. If you prefer to sign up for a subscription plan, your account will be refilled to the selected amount of requests every month. Subscriptions can be changed or canceled at any time.