Studio Roosegaarde interview questions

After a first meeting, I received the task to develop a project in a week. I sent it and basically they ghosted me. I wrote a couple of time just to ask for updates, but nothing at all. Very unprofessional and unethical behaviour...

I had first made a portfolio to show my work and experience in the field of work. This was send to the head of design at the Studio who gave it a glance and called me afterwards to ask whether I would like to come by and have a chat. We discussed the duration and activities of the internship and came to an agreement.