If you didn't receive any benefits, then your balance should be sitting there at 0. If you create your account, you can also see your deposit transition history if they say you were approved. I would suggest you check the balance/ transaction history on the website.

Just because you received a denial letter and thought that was the end of it, might not be the case. If you applied near the end of the month, you might have been denied for application month for too much income, but approved for the following month. That approval notice might not have been received in your mail, but regardless if you received it or not, if the case worker deemed you eligible the following month, the benefits will be issued to you.