You can change your e-mail address like all other personal details in your profile under the section personal settings.
I case you have forgotten your password kindly open the login window from the Lanes & Planes system. There please choose ''password forgotten''. We will send you a new link where you can change your password.
Generally only the admin can change company details in the company profile. In case you want to change contact details, the address or similar things please feel free to contact our Support Team: firstname.lastname@example.org