I thought Amazon is only going to release the game (the physical CD game) on 23rd June? So, no codes or early access?

That's how I thought it's going to be anyway. I pre-ordered it from there because SE store doesn't ship to here

But I don't think 1 week of missing HW is going to THAT much of a loss. You'll still be able to play it and you'll get in with the second waves of new players, so less chance of DDOS.