Curve supports VISA and MasterCard debit and credit cards.
We aren't supporting prepaid cards as standard. At the moment, we allow Osper, Monzo, N26, Revolut, Tide, Monese, Loot and Qonto.
If you'd like us to look into the possibility of supporting another card, please get in touch!
If it is a card from a joint account, you won't be able to add it to Curve if another card is already on Curve somewhere.