Nexus (London) interview questions

I applied online and had my first intake via phone with the HR. The first interview was online with the Senior and Head of the Hamburg office, followed by the second and last one attended in the office by an additional colleague. Eventually, they never returned back to me with an answer even though they assured me they would. After I informed the HR about this she mentioned that she'll get back to me as soon as possible which she also didn't. I expected more professionalism from their side as I did effort to take the interviews seriously.