I've donated to about 15 charities on my card recently and none of them come up as eligible for pay yourself back
"Includes: American Red Cross, Equal Justice Initiative, Feeding America, Habitat for Humanity, International Medical Corporation, Leadership Conference Education Fund, NAACP Legal Defense and Education Fund, National Urban League, Thurgood Marshall College Fund, United Negro College Fund, United Way, and World Central Kitchen. Please donate directly to the charity’s parent organization.
Local chapters may not be eligible for Pay Yourself Back."