LinkedIn Account Executive/Senior Account Executive interview questions

LinkedIn approached me through their network and invited me to apply for the Account Executive position with their emerging market team in Dublin. The process was supposed to be composed of a phone interview with a recruiter, followed by a call with the hiring manager and another step, possibly 1:1 or a panel presentation. However, the discussion never progressed past the initial conversation. The recruiter promised a follow up and to answer some of my questions she couldn't answer while we spoke on the phone. This never happened; I wasn't turned down but neither invited for another round. The recruiter failed to respond to my subsequent email and phone enquiries. Additionally, LinkedIn uses Bluejeans conferencing facility to run the phone interviews. This proved to be highly problematic as the voice transmission through the data channel was patchy. LinkedIn made a very unprofessional impression on me. Not following up on the interview is a big no-no from my point of view, particularly since they earmarked me for the role themselves.