Sounds like the school may have reported the 1098-T wrong.
If the school billed in 2017 and scholarships posted in 2018, the amount that was paid to the school should be reported in Box 1.
If scholarships (in box 5) were reimbursed to you, (not used for education expenses) you'll be taxed on it as income.
CLICK
HERE for IRS Pub 970 Tax Benefits for Education
