View source for Mailchimp Setup New Client Account

Go to https://login.mailchimp.com/signup

At this point you can make an account with any information at all: any part of this can be changed.

Enter any email address that you have access to (x@gaslightmedia.com will take too long for the mail to get through. Hours. Pick something else)

Enter a username that makes sense for the client.

Enter any password. Don't lose it. At this point, you can put the credentials in GLMDB already and likely should.

Click your verification email, enter your information.

Click the Gravatar button, click on PROFILE. here you can change the username and password. Fill in the appropriate client information as taken 
from the client main page in GLMDB.

Click the Gravatar button, click on ACCOUNT. Click on Settings > Details, and make sure the timezone, date and currency are set correctly. Might 
have to change the Account name, too. Settings > Contact Information allows you to change client user info, which you should as much as you can, including the EMAIL (change this!). Double-check everything to make sure

If you made any changes, make sure it is reflected on GLMDB.