Methods and server systems for facilitating sharing of reward points between users are disclosed. Information related to linked one or more social IDs of a first user to a payment account of the first user is received and stored in a mapping file. A request for reward points redemption is initiated by the second user in response to an offer to redeem a fixed number of reward points posted by the first user on a social media platform. A social ID used by the second user to initiate the request on the social media platform is identified. A transfer of the fixed number of reward points from the first user to the second user is facilitated based on the mapping file and the social ID of the second user.