Citi® Diamond Preferred® Card Customer Service Contact Information

We list here the ways to contact Citi® Diamond Preferred® Card. Citi® Diamond Preferred® Card customer service is available on various channels and platforms.

Customer Service Channels:

• Phone
• Website
• Email
• Twitter
• Facebook
• Chat
• Address

Citi® Diamond Preferred® Card Customer Service – Phone

Citi® Diamond Preferred® Card customer service contact number: 1-800-823-4086.

Phone support hours: 24/7.

Additional phone numbers:

TTY: 1-800-325-2865

Citi® Diamond Preferred® Card Customer Service – Website

Check the various customer service options on the Citi® Diamond Preferred® Card site: Click here.

Citi® Diamond Preferred® Card Customer Service – Email

– No customer service email address was published.

Citi® Diamond Preferred® Card Customer Service – Twitter

Customers can contact Citi® Diamond Preferred® Card on the company’s Twitter account: click here.

Citi® Diamond Preferred® Card Customer Service – Facebook

Customers can contact Citi® Diamond Preferred® Card on the company’s official Facebook page: Click here.

Citi® Diamond Preferred® Card Customer Service – Chat

Use online chat for contacting Citi® Diamond Preferred® Card customer support: click here.

Citi® Diamond Preferred® Card Customer Service – Address

Contact Citi® Diamond Preferred® Card customer service by mail: Citibank Customer Service, P.O. Box 6500, Sioux Falls, SD 57122.