Depending on how long ago it was disabled there might not be anything to reactivate. Accounts that remain suspended for more then 14 days are pruned of the system and all data deleted.
There's no client account attached with the forum username you are posting this from, which means that the hosting account likely wasn't either.
If you give us details of your hosting account we can try and find information about if it has actually been deleted or not, cPanel username would be best start to search on for us.