I don't like these machines

I was very hungry today. I was in the university, and I decided to buy something from one of these vending machines. I ordered a chocolate, but the door was locked. I couldn't grab my chocolate. I thought that I might make a mistake by not taking it fast.

I ordered another thing. It got the same destiny! I couldn't get the other one, too.

I tested another machine, and I figured out that machine was broken. I stayed hungry until night. I hope to get refund for items that I couldn't take.

Update: I didn't get any refund :(