I can't find my name on HiScores
If you are not able to locate your account on HiScores it does not mean your account has been deleted.
HiScores works via the character name (which can be changed) and not the login name (which will never change).
Character names are removed after a period of inactivity, if this has happened your old Character name will not show up on HiScores.
Head here if you have forgotten your login name or email for your account.