As stated above, when my school is typed into the addition request form, SheerID says my school is there, and I can claim my discount. However, on both the main discount page and the manual verification page, it says my school is not eligible. I've included screenshots from both pages.
Edit: It may be relevant to mention that I had the student discount last year, with the same school.
Edit: So it appears that what is happening is the spotify page is only showing schools from the US, and I can't change my country from USA to Canada in the settings.