Carallon interview questions

I received an invitation for a video call through Cord with the QA Manager. During the call, he expressed interest in my Automation experiences and we scheduled another video call. This process was repeated for a third time before I was invited to the office for an interview with the CFO and a tour of the company. I thought this was the final step, but I didn't hear back from them for a week. Then, I was asked to visit the office again to meet with the QA Manager in person. During this visit, I spent two hours with him and another Senior QA. They asked me the same questions, but I haven't heard from them since that day. I sent two messages and an email, but I haven't received a response from the QA Manager (Mark). It's been almost a month without any feedback and I am disappointed with their unprofessional and disrespectful behavior. Overall, it feels like a waste of my time.