bill mistakenly counted

If you're being billed for AWS OpenSearch Service but can't find any active domains, here are steps to address this issue:

1. First, verify that there are no OpenSearch domains in other AWS regions. The command you ran only checks us-east-1, but you might have domains in other regions.

2. Check if you recently deleted an OpenSearch domain. When you delete a domain, billing may continue to appear for up to 24-48 hours due to pro-rata billing and delays in cost reporting systems.

3. If charges continue to rise after 48 hours and you've confirmed no active resources exist, you should contact AWS Support directly:

• Go to the AWS Support Center
• Create a new case under "Account and billing"
• Provide details about your situation, including your account ID and the specific charges in question
• Explain that you don't use OpenSearch Service and cannot find any active domains

4. AWS Support is the only channel that can access your specific account information and investigate or adjust billing issues. They can help identify if there are any "stuck" resources or billing anomalies in your account.

5. For future reference, consider setting up AWS Budgets or CloudWatch alarms to alert you of unexpected spending.

While AWS doesn't guarantee adjustments, they often review such cases, especially when there appears to be a technical issue or misunderstanding.
Sources
Request for Billing Reduction Due to Unintended AWS OpenSearch Costs | AWS re:Post
OpenSearch Domain Deleted but billing keeps rising | AWS re:Post

Hi, I understand you have dispute about Opensearch charges, here are few steps that you can follow on dispute. Create a Support case :

• Sign in to the AWS Support Center via the AWS Management Console at
• Choose "Create case" and then "Account and billing support"
• Select "Billing" → "Dispute Charges" as your issue type
• Follow the prompts to describe your request in detail

When you create a support case please provide Account ID and affected region (us-east-1 in your case), Specific time period of the disputed charges, Evidence that you don't use OpenSearch Service (screenshots, CLI output showing no domains), Command output of : aws opensearch list-domain-names --region us-east-1, Detailed explanation of why you believe the charges are incorrect

Please note, document everything, act promptly and be thorough. If you have enterprise support loop in your Technical account manager.

https://docs.aws.amazon.com/awssupport/latest/user/case-example.html

https://docs.aws.amazon.com/cli/latest/reference/opensearch/list-domain-names.html