People often expect books from overseas to arrive quicker than domestic mooches. This doesn't happen.
The only way that I am able to continue to send internationally is to use a book rate, only recognised at one post office in my locality. I therefore send when I can depending on my availability and the post office's opening hours.
Today I received notification that a book I sent, postmarked 1st February 2016, had arrived at its destination, together with another book to the same moocher posted five months later.
International shipping takes a while. Be patient. If you want the book quickly then please order online or find a bookshop locally.