You’ll see this tag on #stock-requests topics.
Some companies (often airlines), require investors to declare their nationality when they invest in their stocks.
Since our Basic Orders are processed as a bundle, we can’t declare the nationality of each shareholder whose order is included in that bundle.
There are ways that we can enable you to buy these stocks but at the moment, we’re prioritising other items on our roadmap first.
You can help us prioritise this functionality by voting for this idea: ☑ [Feature Request 🔧] Nationality Declaration 🗺 
We’ll share updates about our plans for nationality declaration here.
UPDATE - MARCH 2020
Invest by Freetrade will allow us to explore adding these stocks in future, and more. Please keep voting for the stocks you want to see!