At the education interview, after you answer no to the Did you get a 1098-T question. You will be asked if you qualify for an exception. Check the box that you qualify. That will allow the interview to continue so that you can enter your info. You qualify if your school normally gives most students a 1098-T (it's an "eligible institution").
A form 1098-T was made a requirement for the education credits a couple of years ago. However, if you qualify for an exception, you may still claim the AOC, without a 1098-T. If you attended an eligible institution, you most likely qualify for an exception.
“However, a taxpayer may claim one of these education
benefits if the student doesn’t receive a Form 1098-T because
the student’s educational institution isn’t required to send a
Form 1098-T to the student under existing rules (for example, if
the student is a nonresident alien, has qualified education
expenses paid entirely with scholarships, or has qualified
education expenses paid under a formal billing arrangement). If a
student’s educational institution isn’t required to provide a Form
1098-T to the student, a taxpayer may claim one of these
education benefits without a Form 1098-T if the taxpayer
otherwise qualifies, can demonstrate that the taxpayer (or a
dependent) was enrolled at an eligible educational institution,
and can substantiate the payment of qualified tuition and related
expenses.”
Reference: https://www.irs.gov/pub/irs-pdf/f8917.pdf
