Open Destinations Trainee Software Engineer interview questions

Just wanna write a quote by Jacob one of the business leaders " If the process of interview till the time of offer letter takes more than 2 weeks they are broken". I answered my interview in last week of Feb told bootcamp will start in month of April without any offer letter. Than postponed it to mid of May later 2 days before the training they tell me that you didn't do round 3 and I get rejected not feeling bad about rejection but really pathetic management really handled very bad lost 2 and half months of my time.