frog Intern interview questions

One of the worst interview experiences I've had. After my first interview I was given a case study prompt with 500+ pages of reports to sift through. After my case study presentation  frog completely ghosted me. I reached out to them after a month and was told that HR "forgot" to send me a rejection email. It is very frustrating to spend many hours working on a presentation to then get zero feedback and no follow-up.