Students at a now-defunct unauthorized satellite campus of North Carolina Central University got a tuition discount, and millions of dollars in federal student aid given to them may have to be returned, according to an internal report issued on Thursday by the University of North Carolina system.

The report says that students on the satellite campus, which was located at a church in Georgia, paid $100 less per credit hour than what N.C. Central charged nonresident distance-education students, according to The News & Observer, the North Carolina newspaper that broke the story about the campus in August.

The university system’s report also says that, during its four years in operation, students on the campus received more than $3-million in federal grants and loans. According to The News & Observer, some of that money will be given back to the U.S. Department of Education and around $55,000 will be reimbursed to the State of North Carolina for employee compensation and operating costs.

The report also clears of wrongdoing the pastor of the church, Bishop Eddie L. Long, an N.C. Central alumnus, donor, and trustee. The university’s Board of Trustees never voted on the satellite campus, the report says.

The satellite campus was shut down in June, after the university’s accreditor said it was not authorized. The accreditor initially cast doubt on the validity of the students’ degrees, but last month said it would recognize the 25 degrees earned by students at the church. —David DeBolt