Is a deposit to hold an apartment refundable by law?

[Steven Maduro]

I live in Georgia
I am not sure this issue is covered in the hand book I figured I would float it here

I had a unit for rent in the first week of july say july 2, man came and said he wanted it immediately
he had a good job drove a nice car was well put together. he had income verification statements

He made a partial deposit of 300 no paper work just a receipt
he was supposed to move in on the 15th of july
on the 15th he came with another 200 which was the rest of the deposit but he said he didnt want to move in until august

this didnt make me happy and as he stated there was nothing in writing
forcing him to a july 15th move in date

now he states he doesent want to move in at all
and wants his deposit back.

I basically held this apartment for 30 days and now he does not want it,

there was no written agreement but the rental application does state

The following deposits are required:

- security deposit of the first month's rent of 550.00 payable upon move inThe deposit will be returned to the Applicant if the Premises are not rented to the Applicant.

when I wrote this I was under the impression that it meant if for some reason I decided not to rent the unit
but upon reading it
It seems like it states he is entitled to his deposit back.

Did I just mess my self up?