Deliveroo Senior Software Engineer interview questions

First they have shared an OA hackerrank test and then they gave take home assignment of write cron parser and then next week I had a discussion with engineer over my design choices

I have applied for Senior Software Engineer role at Hyderabad. They shared a hackerrank test. Which has lot of restrictions, they have 30 MCQs of distributed systems, 1 Medium Coding problem, 1 API question. Every section has its own time limit, worst part is API question you are not supposed to use any libraries, it doesn't have autocomplete. They imported a specific json library which you supposed to figure out and complete the test. This is one of the worst interview i have ever taken, They didn't share any feedback, I reached out to HR as i was able to complete other questions and want to let them know this issue so that other candidates might not face it. But HR is saying no other candidates faced it, we don't have any problem with the test.