Creating a Blizzard Account
The first thing you need to do is create a Blizzard account. You're going to need a handful of things to log in to use the account. You're going to answer the standard questions that come with creating a new account: name, birth date, email, a password for the account, and then a series of security questions for that account only you would know.
By the end, you're likely going to need to confirm your account by replying to an email associated to your Blizzard account. Make sure to answer it to activate your account correctly.
For those who may have forgotten the password of their account, you can visit here to reset your password. You're going to need to remember what email address is connected to that account, though.
More information about WoW Classic Gold is also available on the GameMS website. This event will maximize the maximum discount for players.