Signing in
You can sign in with an email address and password, or with Google. Booking needs an account, because a booking has to belong to somebody who can come back and see it.
Forgotten password
Use the sign-in page's password reset. If the account was created with Google, there is no password to reset: use the Google button instead.
If you cannot get into the account at all, write to us from the address on it and we will help.
Changing your email address
Change it under account settings. Confirmations for future bookings go to the new address; bookings already made keep the address they were made with, because that is the address the operator has.
Signed in somewhere you should not be
Your account page lists the sessions currently signed in and lets you end any of them, which is what to use if you signed in on a shared or borrowed device.
Closing your account
You can delete your account from the account page. It is permanent.
Bookings are not deleted with it: a record that money changed hands has to survive, both for you and for the operator who has to be paid for it, and the privacy policy says exactly what is kept and for how long. If you have a trip still to come, cancel it or travel first, because once the account is gone you cannot see the booking on the site.