Simply log in and click your profile picture (top-right) » go to 'Edit profile' » 'Account' » 'Email' » edit your email » repeat your new email address » enter your password » click 'Save' to update your profile. Please note: On smaller screens the 'profile picture' is replaced with the sidebar menu icon ☰.
Simply tap the sidebar menu icon ☰ » 'Settings' » 'Email address' » enter or edit your new email address and repeat it » enter your password » tap 'Save'.
Simply tap the gear-wheel icon (bottom-right) » scroll down to ACCOUNT SETTINGS » tap 'E-mail address' » edit your new email address » 'OK' » enter your pass
word » 'OK'.