Just checking - when you press unlock, does the passenger door unlock? If not, you (or someone) could have changed the settings in the car about what to do when the unlock button is pressed - you can set it to either unlock just the driver's door, or both doors and boot.
So it might be worth seeing what is in your car's settings:
Oh, and the boot (well, hatchback) button on the key fob should
open the boot ajar, and not just unlock it. The manual says that this should only happen if you hold the hatchback button for a while, but I found that as soon as it was pressed, the lock clicked open.