Share your experience!
I don't know if Z3+ comes with some kind of screen coating protection, looks like it has because it has some edges around front camera, sensor and speaker. If it has, is it possible or safe to remove it to apply another one. But if it doesn't have any kind of protection, then I'm screwed because of this god awfull air bubble 
Look at the pics
Z3+ is not yet available in Serbia. Nevermind, I'll just have to learn to live with it. Thanks for your reply
There's a way around that, contact another Sony Xperia Support, perhaps the UK and ask them, they should be able to tell you.
The Z3+ does come with a screen protector fresh out of the box. Maybe the air bubbles are from that. Is your Z3+ brand new, out of the box?
http://www.xperiablog.net/2015/06/25/the-xperia-z3-plus-comes-with-a-pre-applied-screen-protector/