Leadenhall Law Group interview questions

Applied for a role through LinkedIn and was contacted to attend an interview. Went to the interview and met the Solicitor I'd be working with and the Business Manager, and the interview went well. They were both really nice! I was then told at the end of the interview that I will find out by COB the next day or over the weekend. I didn't hear from them and so I messaged them the week after and did not get a response. It has now been over 2 weeks and I still have not heard back! This is very unprofessional!