I have a 質問 for you.It's もっと見る of a 質問 for Fanpop, still I was wondering how can I finally get my 1D - This Is Us special cap?

How come I'm the only Directioner without this 1D special cap? I know for a fact that ファンポップ still gives away that very same cap, even now, in 2018, but what exactly should I do to get this cap? I mean, what's the catch? Any アドバイス on how to get it? または should I refrase the question: How did あなた get your 1D special キャップ in the first place? Thank あなた in advance for your answers.