Transunion didn't delete my profile as instructed some years ago but blocked

Was with Transunion for several years until they got hacked some years ago and deleted my profile, so I thought & then mailed & requested them to. Yesterday I was asked to get a credit report & Experian was suggested. I completed the registration & my credit score was excellent. This morning I was unable to login & per the internet Experian's reports are from Transunion. I chose to register again with Transunion however they state that the ID number already exists, which confirms that my profile was not deleted as requested but blocked, because when I tried Forgot Username/Password, the email address that was registered with Transunion no longer exists.