In the DDS console and on the instance List page, for a pay-as-you-go instance, the Unsubscribe operation is provided in the More option in the Operation column, and you can click Unsubscribe to unsubscribe from the pay-as-you-go instance.
Note:
After you manually unsubscribe from the pay-as-you-go instance, a database service instance will not be retained in the management console. Please migrate data before unsubscribing.