EPAM Systems interview questions

The person sent me a message on LinkedIn to apply for the interview, I have applied for this position, this person scheduled an interview Wednesday 16/03/22 at 11 am, he sent me an email telling me, he was in a very important meeting of the company, he will be late 30 minutes, I said ok, I am available later or can we schedule another date and time, he didn't me reply.

Pre-screening by phone, about 30 minutes with HR. Interview on English with Resource Manager, a lot of questions about BABOK: types of requirements, Use Case, User Stories, methodologies, prototypes, mockups