Members 1st Credit Union Alerts message Area
ALERTS
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Our phone system at the Mattis office is currently down. Please call 636-931-7144 if you need to speak with us, or visit 4702 Mattis Road in St. Louis. We apologize for this inconvenience.
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Please check our social media pages for closures due to inclement weather and other emergencies.
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We will never contact you asking for personal details for
account information. Please contact us if you ever receive
such a phone call, email or letter.