Mastech Digital Help Desk Technician interview questions

Received several phone calls explaining approximate duties of the position. Recruiter actually told me that someone resigned because they opted instead to care for their children with a better paying position with more benefits. They asked about my if I had any interviews with any other companies. I obviously didn’t disclose. They went on to aggressively request that I respond to a right to represent document, after I expressed that it would take me about an hour or so to reply they bombarded me with phone calls from the original and several private numbers when I declined to answer no more than 10 minutes later. I ended up sending an email declining to work further with them and got a response email saying that “I should have said that earlier instead of wasting both of our time.” And she brought up that I told her that I wasn’t interviewing with anyone else and now I suddenly want to back out. Overall very, very unprofessional. Don’t even bother it’s likely a information mining scam