To recover your stolen Identity V account (2478400 on the NAEU server), follow these steps:

1. Submit an Account Recovery Request
- Open the Identity V game and navigate to the in-game support chat option.
- Describe your issue in detail, specifically mentioning that your account was stolen along with the account ID (2478400).
- If possible, provide any supporting information such as your player history or receipts that can verify your ownership.

2. Monitor Communication from Support
- After submitting your request, you should receive a confirmation message stating that your request has been received.
- Keep an eye on your in-game support chat for further instructions or updates from the support team. They may ask for additional information to assist in verifying your identity.

3. Follow Up
- If you do not receive a response within a few days, consider following up through the in-game support system. Persistent follow-ups can sometimes expedite the process.

4. Check Online Resources
- There are also various online resources that provide guidance and success stories regarding account recovery in Identity V. For example, Reddit threads detail user experiences with successfully recovering hacked accounts, which could provide insights and reassurance during this process - learn more - learn more - learn more.

5. Watch Recovery Guides
- Consider watching video guides that provide comprehensive instructions on how to recover your account. You can find a detailed guide here: Identity V Account Recovery Guide 2024 or watch this complete guide: How to recover your lost account.

6. Stay Patient
- Account recovery might take time, depending on the volume of requests the support team is handling. Being patient and polite in your communications can make a difference.

Following these steps should help you effectively pursue the recovery of your account. Remember to keep your account information secure to prevent future incidents.