EPAM Systems interview questions

Very frustrating. they are wasting my time .very fake company dont join this. why do you want to join . some technical questions on .net wpf binding, design pattern . code smells . international client round . sql join very easy inner join . They are wasting my time and taking 5-6 interview round.the people there are not intelligent . Instead of wasting time of 5-6 people they can choose 1 intelligent person .