Infosys Software Engineer interview questions

Was referred by an internal employee, interview was scheduled in weekend, about 200-400 candidates were waiting for the interview with different skill set, first round was f2f it was average difficult after clearing there ll be hr interview, after clearing all rounds hr said v may release offer after 2 weeks, after 4 days got regret mail from Infosys saying currently they are no requirements for the applied skills set. If yoy know there are no requirements for applied skill set, then why did you called me...wasted one day of weekend with there lengthy process.