If your acquaintance really deleted the account, then it's not possible to recover the account, unfortunately. If the account has simply been made inaccessible, then Support should be able to help you recover it with the help of your User ID - however, as you already contacted support and they said they cannot help you, I'm leaning towards thinking that it's the first situation in this case.
We cannot help with account problems like these in general here in the forum, and if Support already said that the account is deleted and not recoverable, there's nothing else that can be done.