Restoration requests for dead Hardcore heroes in D2R.
It is not possible to restore a deleted character in Diablo II: Resurrected
What to do if one or more of your Diablo II: Resurrected characters are missing
What to do if your Diablo II (2000) characters disappeared
Error emerges when trying to restore the previous auth on a new device
Expiration information for individual Diablo II (2000) characters.
Information on a current issue with Diablo II: Resurrected Offline Characters not saving.
Request to restore a deleted Battle.net Account or game license
Troubleshooting steps for resolving Diablo II (2000) characters not keeping their experience or items after playing.
How to attach an Authenticator to your Battle.net account