Corporate Office 2023 Gold Canyon Dr. San Antonio, TX 78232
General Mail P.O. Box 701650 San Antonio, TX 78270-1650
Lobby Hours
Mon - Fri
9:00 a.m. - 5:00 p.m.
Sat*
9:00 a.m. - 1:00 p.m.
Sun
Closed
Book an appointment online and avoid the wait! Schedule An Appointment
Drive-Thru Hours
Mon - Fri
9:00 a.m. - 5:00 p.m.
Sat*
9:00 a.m. - 1:00 p.m.
Sun
Closed
*Select locations include Culebra, Fredericksburg, TX, Jefferson, La Vernia, TX, Legacy, Mission, and New Braunfels, TX
Reach Out
Member Care Center
210.442.0100
Toll Free 800.683.1211
Mon - Fri
7:00 am - 7:00 pm
Sat
9:00 am - 4:00 pm
Secure Messaging
Our Secure Messaging channel is one of the safest ways to communicate with us. Log into Firstmark Online Banking or Firstmark Mobile Banking to send a secure message.
Debit and Credit Card Security Hotline | Report Lost or Stolen Cards
VISA Platinum & Platinum Rewards
866.820.3034
Debit Card
866.820.0995
24/7 Debit and Credit Card Numbers
Support - 888.918.7313
Fraud Department - 800.235.7728
To lock/unlock a card, login to Online Banking. Select your account and click “Card Controls.” Choose the card you wish to lock or unlock.
The fraud department closely monitors your card activity. If we notice any suspicious charges, the number above will call to verify those transactions.
Visit Us
Visit one of our 13 convenient locations in San Antonio, Fredericksburg, La Vernia, and New Braunfels, Texas.