The t&c for the 3.88% campaign is a bit sus. Let's say you deposit 100,00 but on 1 Jul, aeon's target of 1b is hit (which aeon says in the t&c that they have no obligation to inform you). Does your 100k still get the 3.88% till end of campaign or does the 3.88% stops on 30 jun, and revert back to whatever normal rate on 1 Jul?

I suspect it could be the latter since your 100k is not locked and the bank will need to have separate calculation if you decide to withdraw partial amounts halfway.