As part of our ongoing commitment to strengthening member security, we’re making an important change to how we send you alerts via SMS messages.

What’s changing?

Currently, SMS messages you receive from us come from an alphanumeric sender ID (alpha tag), displayed as Unity_GCMB.

From 2 September, these messages will instead be sent from a dedicated mobile number, replacing the current alphanumeric sender ID. Members will receive a pop up in our Mobile App or an SMS with the new dedicated mobile number. We recommend saving this dedicated mobile number in your contacts list as Unity_GCMB in order to easily identify alerts from us related to your banking.

Why the change?

This update allows you to reply directly to SMS messages when needed, enhancing communication and improving your ability to respond quickly and securely.

What you can expect

All SMS messages you currently receive from Unity_GCMB will start to be sent from our new mobile number. Situations include:

  • One-Time password (OTP) prompts
  • Banking system notifications
  • Alerts triggered by our fraud detection system

What happens if suspicious activity is detected?

If a transaction is flagged by our fraud monitoring system, you may receive a message asking you to confirm whether the transaction is authorised. Requesting a Yes or No response, accompanied by a provided verification code to confirm that the transaction is legitimate. E.g. ‘Yes 626076’.

SMS 1 SMS 2


Things to remember

  • We will never ask you for sensitive information like an access code, SMS One-Time Password or your Online Banking password
  • We will never include links in our messages
  • We will only ask you for yes or no responses or ask you to contact us.

If you have any questions or concerns, please contact our Member Services team.

For more information on other fraud monitoring practices and how we’re working to keep members safe, please visit our Security page.

Unity Bank


Date: 20/08/2025