Medasource interview questions

Interview process was great the entire time until the end. I had 4 rounds total 2 phone interviews with a recruiter, and 2 in person interviews with the regional manager and then the office manager. Everything was going really well and they made it seem like that I was going to get an offer soon. I was told they would get back to me the week after my interview with the office manager. I followed up later that week and then 3 times the week they told me i would receive more info. I then called the regional manager twice and left a voicemail. I then called the recruiter and also left a voicemail. I had talked to the recruiter at least 10 times on the phone throughout the process and had built a relationship with her. She didn't call me back but instead emailed me a generic "we decided to move on with other candidates". I was very dissapointed that I had to push so hard to get a no. Very unprofessional.