Teradata Teradata Developer interview questions

Interview process was very smooth, Had 1 technical round, followed by another which was a discussion based on my experience. Both went really well and got positive feedback as well. And that was it. Didn't get any official mail for couple of weeks and finally got rejection email after so many follow ups. This was frustrating enough as it was never clearly mentioned that why my profile is not selected. Then couple months passed and I got another call from Teradata HR that my profile is pending due to location constraints and if agree to relocate then they can proceed. So I agreed but then again, no reply or any form of communication. Overall worst interview experience. I was really lookong forward to join but the post interview process was really unprofessional, which I never expected from Teradata.