To be able to access the Roundabout service and take part in the promotions you must have a Business or Creator Instagram account.
How to set up a creator account?
On the Instagram app:
Open the Menu from your profile page
Click on Settings and then click on Account.
Click on Switch to Professional account.
Then choose Creator.
Then go on to the next steps
If you have a business account and want to convert it to a creator account, just change the last two steps: