Sensation Software Solutions NET Developer interview questions

I gave interview and got selected in all the rounds,after the completion of rounds i didn't get any call from them, after calling several times they said that you have qualified all the rounds of interview but we cant offer the package you are asking for. Although they even didn't told me any offering package of them as well, poor experience.,doesn't respond to calls, doesn't give feedback even you are selected or not. Total time wasting of all the effort and time.