I was contacted by a recruiter who asked me in the beginning about my salary expectation and asked for an updated CV to set an interview appointment, the interview wasn't hard but the hiring manager went in every little detail from first year engineering faculty till the moment of interview but it was nice, And he asked again about the salary expectation then another HR generalist again sent an email highlighting all the benefits the company is offering and again asked about my salary expectation for the third time and I replied to her and tried to negotiate and asked for the final job offer but she disappeared without notice, I tried to follow-up with an email, again no reply, then I saw the job posted again