A computer-readable tangible non-transitory storage medium storing a program that causes a terminal device to perform: transmitting, to a first server device, a first instruction to store second identification information of a first user in association with first identification information of the first user; obtaining, from the first server device, a notification of completion of a process responding to the first instruction; displaying the completion of the process; transmitting, to the first server device, a second instruction to give the first user a bonus corresponding to a second user, when the second identification information of the second user is included in list information including the second identification information of other users associated with the first user in the second server device; obtaining a notification of completion of a process responding to the second instruction from the first server device; and displaying completion of the process.