Solved
I received a 1098-T for the tuition/fees I paid for those 3 weeks and I was enrolled full-time at the time. I'm unsure that when I add the 1098-T if I mark I was a "full-time, part-time, or less than part-time" student, considering I left permanently.
You are considered 'less than part time' since you withdrew after three weeks. You have to be 'at least half time' for five months (not necessarily consecutive) during 2020 to qualify for the American Opportunity Credit.
You may still qualify for the Lifetime Learning Credit if your tuition was not refunded to you.
Click this link for more info on Education Credits.
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