Submitting a Writing Supplement, problem with portal

I emailed Colby a while back asking if I could submit a writing supplement alongside my application. They replied, saying that I could upload it to the Colby Portal.
However, I cannot find a specific section for uploading documents. Closest thing I see is an option to add a “Personal Free-form Content Page”. I emailed them asking if I should make a page for the document. They didn’t respond, so I sent another email a short while later. No response.

Does anyone have any experience doing this? Is anyone familiar with the Colby Portal? Please, I need help.

Maybe you could just e-mail them a copy and have them add it to your file that way? Or mail it to them?

You should email it to admissions@colby.edu or your specific region’s admissions counselor if you know who it is.