Once you’ve responded to a shift, your dashboard should say 'waiting for response'. Now if you want to withdraw your application follow these steps:
Navigate in your menu to 'My work overview' or click on 'Dashboard'.
Your dashboard opens. Click on 'Future shifts' and then on 'Applied'. Scroll and click on the shift of which you want to withdraw your application.
This brings you to the shift details. On the right side you'll see: 'Not able to run this shift?'.
Click on 'Cancel my shift'.
Confirm by clicking on 'Cancel shift'.
If your withdrawal was successful, 'Waiting for response' will change to 'You cancelled'. You can always check this in your dashboard. It says 'You cancelled' there as well.