1. Log into the Western Union Digital Banking app.
2. Select the account you wish to add money to.
3. Select the Add money with card option. 
4. You can select a card you have used before or choose to add a new one.
5. When adding a new card, you need to provide the card details like card number, expiry date and the CVV/CVC number
6. After selecting or inputting the card, you need to choose the amount you want to add and authorize the transaction.

After a successful transaction, it can take a couple of minutes to see the money credited to your account.

Please note that adding money with a card is not currently available for all currencies. Western Union Digital Bank allows users to add money only via their cards.