JFrog Analyst interview questions

Unprofessional. Initial phone screening with Recruiter that went seemingly well and was told I was scheduled to interview with the hiring manager a few days later. After not receiving any email confirmation after the initial call after being given the Hiring manager's name and a date and time of interview, I followed up with recruiter multiple times (phone and email) and which were never returned. I scheduled my day around this interview and for them to not notify me in a change of plans or return my email or phone call is a glaring display of unprofessionalism on multiple levels.