Incorrect 1098T

My college counts tuition in box 1 based on when it was billed (e.g Dec 2018) and not when it was paid (Feb 2019). Can i include the tuition paid on my tax return even thought my 1098T shows $0? Since I am a tax payer on a cash basis, I think the amount should be what I paid in 2019 and I used 529 money to cover the cost of the tuition.