One thing to note is that many ISP's meter data in both directions(uploads and downloads) for the FUP limit. Both Hathway and Idea does it (Explicitly documented on their own websites) as do many other ISPs. Not sure about You Broadband, but they probably do it as well.
In their cases, even if the FUP limit may sound high on paper, it is technically not. Don't underestimate the volume of upload traffic you would have. It would be significant. Everything from the requests made in browser to seeding torrents counts towards this. This is why customers find their FUP limit gets exhausted on those ISPs so quickly even though you are not downloading any large files.
ACT on the other hand counts just the downloaded data (documented on their website and I can vouch for it as well)
The grass always looks greener on the other side. So just make sure its not fake before jumping over.