このエラーメッセージに関する原因と対処に関して説明します。
エラーメッセージ(英語)：
how to cancel aws service
対処
関連リンク
AWS アカウントを閉鎖する
https://aws.amazon.com/jp/premiumsupport/knowledge-center/close-aws-account/
アカウントの解約 - AWS 請求情報とコスト管理 - Amazon.com
https://docs.aws.amazon.com/ja_jp/awsaccountbilling/latest/aboutv2/close-account.html
AWS アカウントを終了する前に
https://docs.aws.amazon.com/ja_jp/awsaccountbilling/latest/aboutv2/close-account.html#before-closing・・・
AWS アカウントの削除
https://docs.aws.amazon.com/ja_jp/awsaccountbilling/latest/aboutv2/close-account.html#closing-the-ac・・・
閉鎖後に AWS アカウントに ...
https://docs.aws.amazon.com/ja_jp/awsaccountbilling/latest/aboutv2/close-account.html#accessing-afte・・・
Closing an Account - AWS Billing and Cost Management
https://docs.aws.amazon.com/awsaccountbilling/latest/aboutv2/close-account.html
Before You Close Your ...
https://docs.aws.amazon.com/awsaccountbilling/latest/aboutv2/close-account.html#before-closing
Closing Your AWS Account
https://docs.aws.amazon.com/awsaccountbilling/latest/aboutv2/close-account.html#closing-the-account
Accessing Your AWS ...
https://docs.aws.amazon.com/awsaccountbilling/latest/aboutv2/close-account.html#accessing-after-clos・・・
Stop Future Free Tier Charges - AWS - Amazon.com
https://aws.amazon.com/premiumsupport/knowledge-center/stop-future-free-tier-charges/