Abstract: According to various embodiments of the disclosure, a first payment server may include a communication module, and a processor to receive a card registration request including account information from a first electronic device, to request a second payment server to provide card information on a card, which is registered by a second electronic device, in association with the account information, to receive the card information from the second payment server, and to transmit, to a financial company server, the card registration request of the first electronic device based on the received card information.