You will find the log in to your account with J. Crew Credit Card by logging in to their website https://www.jcrew.com/
The log in box is in the upper left corner of the site at the home page under sign in. Click on sign in and enter your user name and password and login to your account. You do not need further support for using the log in to your account with J. Crew Credit Card since they have modernized their internet banking. Log in to your credit card account from the front page of J. Crew Credit Card.
If you haven’t register yet for online access to your account, you will find the registration box by following same steps above as if you were logging in.
Click on sign in home page upper right corner and then create an account by filling your data to register/create your account with with Crew Card.