The Next Wallet Next 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, as an Electronic Money Institution, registration number 900036. Registered Office: Fifth Floor, Langham House, 302-308 Regent Street, London, W1B 3AT. Company Registration number: 06337638. Mastercard is a registered trademark, and the circles design is a trademark of Mastercard International Incorporated.