Brainlabs Graduate Scheme interview questions

Applied online, interviewed in London soon after. My interview was scheduled around lunchtime and I had time to chat with some employees during lunch. It seemed pretty disorganized (most employees didn't seem to know that interviewees would be there for lunch) but everyone was very friendly. There were a few short tests and a one on one basic interview followed by some Excel work. It was overall a good interview, very relaxed and welcoming. However, I was very bothered by the fact that I never heard back after the interview. After taking a day out during exam term for an in-person interview, I at least expected a polite rejection email and it really put a sour taste in my mouth about the company.