Audio transcription survey file upload issue

I was invited to a project on appen. After applying I got a mail to complete a user testing survey at a given link. On the first page of the survey it asks for my email and a video upload. Thing is, there's no description of what video I have to upload. Any help?

screenshot of the page

submitted by /u/tcrz
[link] [comments]

source https://www.reddit.com/r/beermoney/comments/n2kmpk/audio_transcription_survey_file_upload_issue/