Sixth form decision

I have been accepted to 2 schools that I applied, Herts and Essex School and Leventhorpe School. I just can’t decide which one to go. Leventhorpe is only bus ride from home, for H&E I have to take train. I don’t want to occupy the place . The schools are closed until 4th September. Do I need to wait until schools open to send emails to withdraw my application? Thanks