You can login to your LTA account at any time to amend or cancel your booking within the 'Upcoming bookings' section. Please follow the below steps:

Website

1. Profile icon (top right on the website)
2. Advantage Home (on drop down)
3. My Bookings or Make & manage bookings
4. Upcoming bookings
5. Click into the specific booking you wish to amend or cancel
6. Scroll to the bottom and view the cancel button

Access and manage your bookings here 

LTA Play App 

1. Login to your account
2. View the My bookings section on the home screen
3. Click 'see all' to view all upcoming bookings
4. Click into the specific booking you wish to amend or cancel