How long does it take for the fibre boost to take effect?
On a side note..
I've been trying to get this boost since last week when I renewed my contract and decided to try out the slower fibre, knowing that I could add the boost later.
Every time I went to the "home phone boosts -> update your fibre speed" page, there wasn't any way to actually get the boost, just a message saying "Great News!" etc. I discovered today that Adblock Plus blocks that element on the page. It also causes problems logging in, where the dashboard page will only load after refreshing multiple times and generally slows down the whole site so much that it takes about 5 minutes just to get to the upgrade fibre speed page.
Anyway, problem solved after disabling Adblock Plus but I thought I'd let you know.