SUMO London interview questions

I applied via LinkedIn and the next day I received an inmail message asking if i can provide some times and dates available to discuss this role in more detail with the link provided. Once I did the recruiter then sent me a copy of the job description. On the day the call was supposed to take place the recruiter looked me up on LinkedIn an hour before the call. When the call was due to take place the recruiter never rang. I never received an email or explaination as to why the call never happened. Its rude, unprofessional and a waste of a candidates time.