Security Innovation Security Analyst interview questions

They took my interview in 2 different rounds, first round was cleared and i got call from them. Second round also went pretty well, i was sure i will be selected after that i was just waiting for their call or official mail. I didn't received anything after asking them they fooled me that i don't have skills and they wasted my 1 month behind this.On the other hand they don't even know how to write a professional mail.