Well, it seems that Ruby has suddenly found a lot of support! Her vote count has gone up by about 400 in a couple of hours & she's now third.
On one of the private Facebook pages there is a campaign to vote for everyone except Charlie to ensure that he doesn't win.
Although you can only vote once per day for a specific child, you can vote for as many children as you like per day.
I can't see this competition running the full 90 days. On MSE there is a copy of an email reply from someone a Kinder following a complaint about vote rigging.
Although Kinder must be loving all the free advertising they won't be wanting all the negative publicity.