Identify Resources Available for AWS Billing Support

AWS Knowledge Center gives answers to questions about your bill.
Customers have access to account and billing support free of charge.
Personalized technical support requires a support plan.
Use AWS Cost Calculator to estimate monthly bill.
Trusted Advisor helps with reducing costs, by suggesting changes to your existing infrastructure.

AWS Billing Support – Contacting AWS Support

Sign in and navigate to the AWS Support Center. If prompted, type the email address and password for your account.
Choose Open a new case.
On the Open a new case page, select Account and Billing Support and fill in the required fields on the form.
After you complete the form, you can choose Web for an email response, or Phone to request a telephone call from an AWS Support representative.
Instant messaging support is not available for billing inquiries.

It is a billing and account expert, providing quick and efficient analysis and assistance.
Included as part of the Enterprise Support plan,
Addresses all non-technical billing and account level inquiries
A primary contact to help manage AWS billing and account-level services
Proactive guidance and best practices for billing allocation, consolidation of accounts, and root-level account security
Direct access to a billing advocate for payment inquiries, cost reports, service limits, and bulk purchases