ifollow one last question for overseas user (hopefully)

[SydneyRover]

OK, I given up asking ifollow via their email or live chat as they are hopeless, either not answering the question or giving incorrect info or both.

My question: Starter for 10 points plus a further 5 points for the supplementary question, if you watch the delayed broadcast when purchasing a single live game how long does the option to do so remain available and why do you have to stay up half the night to register just so you can watch it (hopefully) in the morning? I don't really expect anyone to have an answer to the second bit.