I have logged onto this account after a year and I was surprised that I was not able to find any of my characters on any of the realms.
I had some characters since in the history of the account it is clear that I purchased some heirlooms with points. I just am, for the life of me, unable to remember any of the names.
Also, I believe that no one got access to my accounts by looking at the account history. I recognize all the logins and password changes.
I would create a support ticket but unfortunately there is only a "Ban Appeal" option when choosing from the drop-down list.