The frost seemed to have frozen it up and the window didn't come down a little bit to open the door so I locked it again immediately and sprayed a lot of de-ice on the edges to try and release it.
So.. I unlocked it again and it tried to open the window again, struggled for a second then opened about an inch and half and wouldn't close again!

Just wondered if this is a common thing to happen, that the window won't move until the car thinks it's safe to do so or something? Anyone else experienced this?
From now on will make sure I de-ice BEFORE unlocking.