Skip to Main Content Skip to Sitemap Skip to Online Banking
placeholder for jump to top link
Get convenient access to friendly, knowledgeable people.

If you need to send mail, please use the address for our headquarters:

Credit Union ONE
400 E. Nine Mile Road
Ferndale, MI 48220

You also can reach us conveniently by phone. Use these numbers to the get the answers you need.

Contact Center

(800) 451-4292
Monday - Thursday: 7:30 a.m. - 5:30 p.m.
Friday: 7:30 a.m. - 6:00 p.m.
Saturday: 9:00 a.m. - 1:00 p.m.

Consumer Lending

(800) 451-4292
Monday - Thursday: 8:30 a.m. - 5:00 p.m.
Friday: 8:30 a.m. - 6:00 p.m.
Saturday: 10:00 a.m. - 12:30 p.m.

Chat Hours

Monday - Friday: 7:30 a.m. - 8:00 p.m.
Saturday: 9:00 a.m. - 1:00 p.m.

Real Estate Lending

(800) 451-4292

Monday - Friday: 8:30 a.m. - 5:00 p.m.

24-Hour Telephone Banking

(800) 423-3069

Activate Your MasterCard® Debit Card

(800) 466-0040

Report a Lost or Stolen MasterCard® Debit Card

Inside the U.S., 24/7: (888) 241-2510
Outside the U.S.: (909) 941-1398

Report a Lost or Stolen Platinum Visa®

(800) 379-0935

Online Banking and Bill Pay Assistance

(800) 451-4292



Please log in to Online Banking or Mobile Banking, and send your question through secure messages.

Log In


Please fill out the form below and submit to send an electronic message to us.
Feilds with an asterisk (*) are required. 


What is the best way to contact you?
Contact Preference*:

Are you a current member?
Current Member*:

This form is only for general questions and comments. Please do not send any sensitive information in the message of your form (e.g.: Member number, account numbers, social security number, etc.). If your question involves your accounts or any personal or private information, please log in to Online Banking and send a secure message, call the Member Contact Center, or visit a branch location.

Always at your service

When you need answers, you don't want to wait around. That's why we offer various options for contacting us so you can get in touch with friendly professionals who can provide the guidance you need.