If you are having difficulties logging in, I would recommend that you try the following things.
Ensure you type your email, not select pre-filled information.
Ensure you are not using capital letters in your email address (some mobile devices do this as default)
If you have changed your password, please ensure it is something you haven't used before.
Try logging in on a new browser and/or device.
Try clearing your browsers history and saved passwords.
If you continue to have issues, please select password reset at the login screen and ensure you check junk/clutter folders.
If you are not receiving the emails, please add the below email to your contacts and try again: