I used Google to create an account. Then, after checking the settings from the Waze app, I decided it was too much for me right now, too many functionalities which would just get in my way of using a simple navigation app, and proceeded to try and delete my account. That proved to be impossible, since the process requires a password, which I do not have - and cannot have, since "Change Your Password" asks me to type in my old password, and that does not exist, of course.