Scientific Games Hard Coding interview questions

Highly disappointing result after so long process of the interview. The Whole process was framed into 5 technical Round, I Cleared all the five. From Morning to evening totally exhausted , since there was no gap in between the interview round. Finally after Fifth Round I asked one HR person about the Result he told me that if I clear three rounds I'll get through. That's like false promise and highly unprofessional.