If you are a single, 没有收入, Check your
line 18 of ON479 (填了房租后should be 350+,that should be your refund)
Did you 填了 T2202A?
line 21 of Schedule 11(should have some unused fedral tuition amountyou can carry forward to a future year. this is important)
line 21 of Schedule ONS11(should have some unused provincial tuition amount)