This topic describes the refund rules and operations for ApsaraMQ for MQTT resources.

The subscription billing method is used for ApsaraMQ for MQTT resources. You pay for the resources before you use them. If you no longer need the resources in Message Queue for MQTT due to changes in your business demands, you can submit a request to unsubscribe from the resources and claim refunds. For information about the detailed refund rules and operations, contact ApsaraMQ for MQTT technical support.