TLDR: When acting on your behalf, the referring business must verify your identity by requesting photo ID. To start, select the 'ID Check' task from the list, then follow instructions to provide your photo ID. Press the blue 'Next' button to choose the type of ID to submit.
I've been asked to provide my ID document
When acting on your behalf, the business that referred you to Thirdfort needs to verify who you are. To do this, they have asked you to provide a form of photo ID.
Starting the ID check task
To start the task, select the 'ID Check' task from the task list. You'll then be given a brief introduction to the task and what you have to provide.
Providing your ID
When you are ready to begin, press the blue 'Begin' and 'Next' buttons. You'll then be able to select the type of photo ID you wish to submit. You can read more about completing this stage here.