Doors not unlocking correctly

Hi all
Our Discovery 2 doors don't unlock in the right way. Using the fob only the rear OS door, front NS door and rear door will unlock. To unlock the front drivers door you have to use the key and to unlock the rear NS door you have to use the interior handle. Anyone got any ideas how to fix this? Also how do we get a spare key and fob.
Cheers
George

check the sticky thread at top of page - might help you

Don't bother looking at the sticky it won't help you, the lock spring is only a D1 issue.

Your D2 locks have built-in locking/unlocking servos (actuators) therefore if a lock goes faulty which has happened with your two locks they will require replacing, you could try lubrication but it usually ends up in a lock replacement.
It's not an unknown problem so just do a search in the forum for more info.