Contact Us
Guiding You to the Right Support
Whatever you need, we’re here to help. Choose the option that works best for you.
Report a Lost or Stolen Card
If your Mastercard® credit card, debit card or ATM card is lost or stolen, please contact us immediately by calling us at (406) 727-2210. After business hours, please call 1-888-297-3416.
Call or Text Us
Text us or give us a call at (406) 727-2210 or 1 (800) 721-2242 for general questions.
Visit a Branch
Our branch hours are Monday – Thursday 9:00am – 5:00pm, and 8:30am – 5:30pm on Friday. Find the nearest branch.
Email Us
Send us an email at supportcenter@montanacu.com or log into digital banking to send a message.
Other Ways To Contact Us
Send Physical Mail
Send all mail correspondence to:
Montana Credit Union
PO Box 5027
Great Falls, MT 59403
Update Your Account
While we are unable to process address or account changes through our website, please contact us at (406) 727-2210 or 1-800-721-2242 to make these changes, or log in to digital banking to change your address online.
ATM FAQs
If your Montana CU credit, debit, or ATM card is lost or stolen, we encourage you to turn the card “off” in digital banking. Either in our mobile app or online banking, look for Card Control in the menu. From there, tap or click on the appropriate card, and follow the prompts to either lock your card, report it lost, change your PIN, or adjust controls and alerts.
We also recommend you give us a call at (406) 727-2210 so that we can help make sure there is no fraud or theft on your card, and discuss options for either reopening your card or getting you a replacement card. After business hours, please call 1-888-297-3416 for assistance.
If your Montana CU card was not returned during your transaction on this terminal, please contact us either through your mobile app, or through the Contact Us option below. Then, please go into your Montana CU mobile app, click on Card Control, and turn your card off for additional security.
If the card that is captured is not a Montana CU card, please contact your issuing financial institution.
If your transaction was not completed, please contact us. We will research and get back to you within 3 business hours.
Please contact us at your earliest convenience, either by phone (call or text) at (800) 721-2242 or (406) 727-2210, through the mobile app, or through the Contact Us option below.
Contact Us
Please use the convenient form below for general questions or comments. We promise to get back to you within 24 business hours. Note: Do not send sensitive information through our contact form or via email, since these modes of communication are not entirely secure.