Fid i just receive a Free 100$?

I went to a bank ATM. I dont want to name the bank. And i put my Cash App debit card in and requested $100. I had exactly that , $100. I forgot that it takes $2.50 out as a fee, so I had to have $102.50. the transaction was denied but yet still gave me $100. The money has yet to come out of my account and it's been a day. Do you think I got a free 100 bucks?

UPDATE: I DID GET A FREE 100$ They never took the loot out.. idk if it was a atm glitch or what but I'm pretty ok with it! What ever it was ! 😊