Blue Origin interview questions

Everything went quick and smoothly until the end of the interviews. I applied online and was contacted by one of their recruiters a couple weeks later. I am an out-of-state candidate so they set up a call with the hiring manager before going onsite. I proceeded onto the onsite interview where I presented for 30 minutes and had 1:1s after the presentation. Prior to your interview, you also have to do a written summary of your thoughts on access to space and space flight. I'll also mention that I had to pay my own way for the interview because of my role...which I was completely fine with because I had a strong interest and passion. Everything was moving at a pretty good pace up until this point. I was told I would hear from them by the end of the week, but didn't hear from them until a couple weeks later after I followed up a couple times. I was then told they would make a decision by the next week. I get a voicemail from the recruiter saying to call her back that day or the next for some feedback (no mention of a rejection or offer). They had a cutoff time for that day that I couldn't make so decided to call the next day. I called and left a voicemail but didn't hear back, so I emailed to share my availability and to make sure they knew I tried reaching them. It has now been over 3 weeks since that last correspondence and I still have not heard anything from the recruiter; even after another follow up. I am extremely disappointed by the way Blue Origin and the recruiter have handled this situation. I understand if I'm not the right candidate, but I do expect to be told the outcome of my interview...especially because I spent a lot of my own money to do so. I can't imagine how they treat their employees if this is the way they treat candidates.