You could apply for 3 internships at once (they had numerous internship positions open). Firstly, you received a call from an HR employee. Then you were invited to a real interview, which was conducted online with 2 employees (one of them was the manager of the team). After that you waited 2 weeks for the results. If you weren't selected, you can apply for another intersnips (that remained free) or only ask for the reason that they chose another candidate.