Curve supports Visa and Mastercard® debit and credit cards. We don't support American Express, Maestro, Diners Club, JCB or UnionPay cards.
We don’t support most prepaid cards. If your prepaid card doesn’t work with Curve and you'd like us to support it, please raise a ticket in-app or email support@curve.com and we’ll look into it!
Also, keep in mind that at the moment you're unable to add the same card details twice anywhere in Curve. Even if your card is from a joint account and your cards have the same number, you won't be able to add the card to Curve if a card from this account was added to another Curve account.
“The Curve card and E-money is issued by Curve OS Limited (company No. 09523903) authorised in the UK by the Financial Conduct Authority to issue electronic money (firm reference number 900926). Mastercard® is a registered trademark of Mastercard International Incorporated."