Tier 1 Executives interview questions

First interview was in-person. They took two applicants at a time and we had to take turns answering basic questions. It lasted about 15 minutes before the next round of applicants were up. We were both offered the second round interview before we left the building even though we didn't really talk about our qualifications at all. Still unsure what they even do. It felt scammy and I didn't take the interview. Later, I got a call from the owner interrogating me for 10 minutes asking why. It's fine to ask, but the tone was too aggressive. Do your research!