How to stop being charged for Amazon Relational Database Service

The charges you have there are only a partial month of usage, so something was spun up and spun down like you mentioned and therefore you were billed for that time period of usage. 156hrs of the instances is a little over 4.5days of them running (Which aligns with your Cost Explorer view May6th-10th). You should not be charged any longer after the instance and all associated resources were deleted from the account.

If you continue to see charges, open a support case for billing to get them to assist.

Based on the information you provided, it appears that these charges are related to

1. running a PostgreSQL database on Amazon Web Services (AWS) using Multi-AZ (multiple availability zones) and Provisioned IOPS (input/output operations per second) storage.

• The first charge of $1.17 per hour is for running an RDS db.m5d.xlarge instance with Multi-AZ, which provides high availability and automatic failover in case of a hardware or software failure. This charge is calculated per hour or partial hour that the instance is running.

• The second charge of $0.3 per IOPS-month is for the number of input/output operations per second provisioned for the Multi-AZ instance running PostgreSQL. This charge is calculated per month based on the number of IOPS provisioned.

• The third charge of $0.375 per GB-month is for the amount of Provisioned IOPS storage used by the Multi-AZ instance running PostgreSQL. This charge is calculated per month based on the amount of storage provisioned.

To rectify these charges, you can review your AWS usage :

1. You are checking in US East (Ohio) Region for resources - Please change the region to US East (Northern Virginia) region to check for active RDS Resources.

2. To terminate an RDS resource, you can follow these steps (In US East (Virgina) region as well as the ohio region - if you dont want the resources anymore:

   Open the Amazon RDS console at https://console.aws.amazon.com/rds/. In the navigation pane, choose Databases. Select the RDS instance that you want to terminate. Choose Actions, and then choose Delete. In the Delete DB instance confirmation box, choose Delete.

• Note that when you delete an RDS instance, all automated backups, manual snapshots, and read replicas are also deleted. If you want to keep any of these resources, you should create a manual snapshot before deleting the RDS instance.

3. To list all the RDS resources in one place, you can use the AWS Command Line Interface (CLI) or the AWS Management Console. Using the AWS CLI, you can run the following command to list all RDS instances in your account:

aws rds describe-db-instances
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This command returns a list of all RDS instances in your account, along with their details such as instance identifier, engine type, status, and endpoint.
Using the AWS Management Console, you can navigate to the RDS dashboard and view a list of all your RDS instances. From there, you can also view details about each instance, such as its status, engine type, and endpoint.

Hope this helps.