Where to file online course (Orea Collage) as a deduction because my return gets reduced under tuition fees. I also filed for student loan interest (not a student)

[TurboTaxSusan]

What is likely happening is that the Canada Workers Benefit (CWB) (aka the Working Income Tax Benefit) was added and the removed from your return. In the Income part of the return, if you had a small amount of employment income, then that would make you eligible for the CWB. But later, when you added the tuition, the CWB would have been removed, since students are generally not eligible for the credit.