Erased Characters

Hello, a person entered in my account and deleted all my characters. For the same reason i had to change my password so that person won't enter again. If there is any possibility of recovering my characters or at least the one with the highest level i would be very grateful. Thanks in advance

https://www.warmane.com/account > services
Select realm > Currency:Points/Coins > Character restoration

You should be able to see a list of characters you can restore.
It costs 0 points/coins if done within 48 hours (but once every 7 days)