I am not sure what should I have done to not get in this situation. Comments history:
Jul 11, 2014 10:06:27 AM|Processing Customer Notification Not Applicable Authorized amount of $50.24. Transaction ID: "xxxx".
Aug 10, 2014 2:06:45 PM|Processing Customer Notification Not Applicable IPN "Expired". Registered a Void notification. Amount: $50.24. Transaction ID: "xxxx-void".
I know that 30 days passed and that's why expired. I don't understand why the money weren't taken. Are they taken only when a shipment and then the invoice are created?