Merge API Partner Engineer interview questions

Applied online, a recruiter reached out to schedule a screening interview. Standard coding interview, followed by 3 rounds of onsite interview. After that there was supposed to be an interview with the CTO. Cleared the onsite and was scheduled for the last round with the CTO. But 2 days before the final interview, another recruiter reached out to talk about salary expectations and start date. I told my expectation which was well within the posted range in the job description and then half an hour later I get a generic rejection email. Extremely unprofessional way to handle things. Looking back now, I am glad I did not have to join this company as I saw some Glassdoor reviews saying things there are not quite what they seem.