Enjoy easy management of your Diamond Credit Union Platinum Mastercard anywhere with the DiamondMC app. Registering your Diamond Credit Union credit card is a cinch from any mobile device, and access is secure and protected by multi-factor authentication. This app offers a convenient way to:
- View recent and pending transactions.
- View account details.
- Make payments.
- View payment history.
- Report your card lost or stolen.
- Dispute a transaction.
- Set travel notifications.