In order to change the account names:
1. Make sure you have the appropriate access and permissions to allow you to update the name
2. Navigate to Setup>Accounts>AWS within the CloudHealth left navigation
3. Once you have reached that screen, click the edit icon next to the account that you wish to update
4. Within the edit screen, there will be an option titled "Account Name" where you can enter the name that you would like the platform to use for reporting