The Next Wallet Top CARD - Prepaid MasterCard is issued by Prepaid Financial Services Limited pursuant to a license from Mastercard International Incorporated. Prepaid Financial Services Limited is regulated and authorised by the Financial Conduct Authority, registration number 900036. Registered Office: Fifth Floor - 302-308 Langham House - Regent Street - London W1B 3AT. Mastercard is a registered trademark, and the circles design is a trademark of Mastercard International Incorporated.