KONE Intern interview questions

I was approached by a recruiter for an open role and decided to apply. My interview with the hiring manager went well - standard interview questions about resume and working styles. The recruiter then asked me to start on a certain date which we eventually agreed on and then informed me that the HR lead would contact me next. Given that this was basically a confirmation of the offer, I informed the recruiter that I will be declining another internship offer to take on this role. After a while, I had still not heard from the HR lead, and the recruiter then informed me the role had been closed. Later, she reached out again about the same position, asked for my availability, and said she would confirm with the team. After that, I received no further updates and was ghosted despite her originally prompting me to take on the role after I was hesitant. Overall, the process felt inconsistent and time-wasting. The recruiter wasn’t very professional in her messages and actions too - she would often spam messages and occasionally even called when I didn’t reply within merely 10min.