If you don't have access to the account's email address you can contact support and we may able to change it to a new email if you are able to answer a list of security questions. We use these verification requirements to make sure we don't give out any user information to the wrong person.
Otherwise, if you lost access to the email address that's linked to your Rapchat account and cannot answer the questions you will need to contact your email service provider to try and regain access.
Below, you'll find contact links to common email providers. Once you've regained access to your email, you can reset your password here.