What is my username and pw?

You login id (by default) is the part of your email address in lowercase to the left of the @ sign and (your password is the same as your login id)

For example if your email were: JohnDoe@gmail. com, your login userid would be johndoe and your pw, johndoe (all lower case).

Or, Albert.Lun@gmail.com, the login userid would be albert.lun and pw, albert.lun