Contact Us


Phone: 713-778-6300    Fax: 713-778-6300

Branch Hours of Operation

  • Monday-Friday   8:00am – 4:00pm
  • Wednesday        9:00am – 4:00pm

Drive Thru 

  • Monday-Friday   7:00am – 6:00pm

Using your touch tone phone you have access to your account information 24/7 using Voice Response. Simply call 713-778-6300. 

Email Us

Methods for Sharing Confidential Information. Confidential information may be securely sent or discussed through the following MCU systems:

Secure Messages is accessed through MCU Online. You must be enrolled in MCU Online to use Secure Messaging.

Encrypted Email – If a MCU representative sends you an encrypted email, you will be  asked to login and create a password before you can even view the email.  You may reply to that email and your message will also be encrypted when it is sent back to MCU.

Email Us (general, member representative, online accounts, etc.)

Mail Us

Memorial Credit Union
7789 Southwest Freeway, Suite 175
Houston, TX 77074

Report a Lost or Stolen Card

Lost/Stolen Debit MasterCard® Contact your local branch or call 24/7 services at (833) 933-1681.

Debit Mastercard® Customer Service: (501) 246-8497

Debit Mastercard® & ATM Card Activation: (833) 998-4585

Debit Mastercard® & ATM Pin Change: (833) 998-4585

Cardholder Disputes:

Cardholder Disputes: To file a dispute/fraud claim – Please call 866-279-1399. A debit card representative will assist cardholders with filing a claim.

Hours of operation are M-F 7am-7pm. After 7pm, cardholders can leave voicemails, which will be answered the next day.