On my 1098-T, why is my Box 2 (amount billed) not reflecting this current spring semester (Box 7 is unchecked)?

In the past three years, box 2 has reflected around 10,000, and Box 7 has been checked (indicating the amount billed for tuition reflects this current spring semester as well). On my 2016 1098-T, I am still enrolled full time, but the amount in box 2 is about half what is usually is (4500) and Box 7 is unchecked. This is keeping me from qualifying for the American Opportunity Education credit. How do I resolve?