So far, it is impossible to delete your Raid account. If you decide to quit the game, log out of your account. You can connect it to a fake email address. For more information, check the article How to reset progress or start a new game?
Also, you can delete your Plarium ID on plarium.com
1. Log in with your Plarium ID
2. Open your Profile
3. Go to Profile information
4. Click Edit in the Account section
5. Click Delete account
If you decide to restore your account, use the recovery letter emailed to you after you deleted your account. If you haven't received any email, please contact our Support.