LilyBLily, congrats on the international Bookbub - do let us know how it goes for you.
In the spirit of this thread, I hope it's ok to share that I've also got an international Bookbub coming up on Sunday, 18 April. This was a bit of a shock, as all my books are in KU. The International Bookbub is for a box set of the complete (five book) first series which is normally 8.99 USD / GBP, but which I've reduced to 0.99 USD / GBP for April.
I've applied the reduction worldwide as it was an experiment - I've applied for a Bookbub on this box set before now, but always been rejected, so it was a nice surprise to get the international deal.
Side note: I've also run promos with Fussy Librarian, Bargainbooksy and ENT for the 0.99 box set this month and the results, well, dismal just about covers it - I don't think I've covered my costs even for Fussy Librarian. So I don't have high hopes for Bookbub, but I was delighted to get the slot anyway.