Heya, we can try to look into this for you. However, just to clarify was your original account a guest account? Some of your comments made it sound like that may be the case, in which case it could have been lost just due to not backing it up/syncing it up between app updates.
If that isn't the case though, could you PM us and let us know any details you might have about your old account, like UID, Player ID, or Username? We can check and try to confirm if it is a account deletion request.