GE Aerospace interview questions

I gave the first round of interview. It went well. After that i got the call from hr that I cleared the first round. Please attend the second round as it was already scheduled. She asked me to send my payslips also. When I joined the call for the second round, no body was there, I was waiting for so long. Then I called the hr, she told me your interview is cancelled, we have already sent you mail. I did not get any mail related to cancellation of interview. She did not tell why the interview is cancelled. It was a total waste of time. Very unprofessional behavior. Please do not do this with anyone.