1. First of all, you should have a World of Warcraft account (nonsense), and then this account must be 1 1 in February this year (I can't remember the exact date).
Anyway, the approximate time period is from February to now. You haven't been to this number, and even Battle.net can't log in.
2. Then you can resurrect this account with other World of Warcraft accounts.
3. After the resurrection, the characters under this account can be upgraded to level 80 for free ... no money or card to order. ..
4. The specific operation seems to be to log in to Battle.net first, or send a message to the resurrected person in the game, and then the resurrected person will receive a letter.
Just follow the prompts after receiving it.