To control your software applications state go to "Software"-"State of requests". Here you can see all your software requests and their state.
State can be:
When state is "Waiting" you can refuse from application by clicking Cancel. When your request is processing money for the software are blocked on your account. You can see it in "Account state". You cannot cancel your request when it is processing. After request is successfuly processed blocked money are debited from your account and you will be able to see your licenses in purchased license.