Having trouble registering multiple domains after a successful first attempt can be quite frustrating. From the error message you’re seeing, it seems like this is an issue that requires a closer look from AWS Support. You’ve already taken the right step by opening a support case.
Support response times differ based on your AWS Support plan. The free Basic Support might only handle billing and account questions, while Developer Support responds within 12 to 24 hours during business hours. Business Support offers 24/7 assistance with urgent issues typically responded to within an hour, or within 12 hours for general questions. Enterprise Support provides the fastest and most comprehensive help around the clock.
Since you’ve already opened a support case, you can track its status and provide any extra details through the AWS Support Center at AWS Support Center. When updating your case, include details like the specific domain names you’re trying to register and the exact times when the failures happened. This information can help speed up the investigation.
Usually, domain registration problems are caused by contact information validation issues, but since your error message is generic, there’s likely a different underlying cause. AWS Support has access to the backend systems and can identify exactly why the registrations are failing. They will work with you to find a resolution.
If you find that you need quicker support in the future, consider reviewing the different AWS Support plan options to see which one best fits your needs.