The Citi Diamond Preferred Credit Card owners can access their account using the online login portal. The Citi Diamond Preferred Card is an awesome credit card, offering an almost unheard of introductory APR of 0% for 21 months and some great benefits. Having an online credit card account can help you pay outstanding bills, book tickets, check your account statements, view transaction history and much more, accurately and at a faster pace. So, if you are seeking help for signing into your Citi Diamond Preferred Credit Card online account, follow the guidelines mentioned below and enjoy managing your credit online.

Citi Diamond Preferred Credit Card Login Instruction:

Step 1- To login to the online account, the users will have to go to the Homepage and enter their ‘Username’ and ‘Password’ at the top left of the page. Click ‘Sign On’.

Forgotten Username/Password:

Step 1- If any user has forgotten their login details, then they should click on ‘Forgot User ID/Password?’ at the login section of the page.

Step 2- The user will be taken to a new page where they’ve to enter their ATM/Debit or Credit Card Number.

To Make a Payment:

Step 1- To pay the credit card bill the user will have to log in to his credit card online account following the steps described above. After logging to the online account the user will find options on how to make the payment. Or, if you prefer, you can pay at any Citi Bank Branch, by phone, or by mail.

Step 2- Another option to pay the bill is that the user can authorize an auto debit from their bank and the credit card company will collect the monthly bill from your bank account without having to go to much trouble.

Activate:

Step 1- After receiving the credit card through the mail, the users will have to first activate it before using it. To activate the card, the users will have to either call on 1 (800) 347-4934 or they can do online by clicking on ‘Activate a Card’ on the login section of the homepage.

Step 2- The user will be taken to a new page, where they’ve to enter their ‘Credit Card Number’ and click ‘Activate’.

Customer Care:

1. Phone Number- 1-866-422-3091
2. Mail Address: CitiBusiness Card P.O. BOX 9001037 Louisville KY, 40290-1037
3. Contact Link