Tesco interview questions

Total 3 rounds. 1st round written test(consist of four sections verbal, analytical, quantitative aptitude, technical) 2nd round technical questions are basic and from all the areas like software engineering, data structure, c. 3rd round HR..

I had attended the interview for buying ops specialist at TESCO, the interview process was not bad, they came back that m selected, however after few days informed me the project got ramped down or watever, and asked me to attend interview for other process which I did wasting two days of my leaves... and after the interview they never got back to me about the outcome of the interview..!!!! and when i try to reach the HR over mails and calls they never bother to respond.. :-/ If they do not have openings why waste ppl's time by calling them for a day long interview????