While character deletion is intended to be permanent, it is possible in some cases to restore a deleted character. If you accidentally deleted your character, you can submit a help ticket to Customer Support here for further assistance. When contacting support, please provide the following information:
Deleted character name, race, class, and level
The date the character was deleted
UserID associated with the ESO account
E-mail address associated with the ESO account
Platform (PC/Mac, XB1, PS4)
Megaserver (NA/EU)
Additionally, due to the possibility of bank items being lost in the restoration process, please remove all items from your bank before contacting support.
Please note that restoration is not guaranteed as not every character can be restored.
In addition, we ask that you refrain from creating new characters with the same name as the deleted character (this can hinder the restoration process) at the time of contacting Customer Support.
It is possible, I have done it with a nightblade 2 weeks ago.