REMOVING DOOR PANEL IN 2013 NISSAN FUGA MH35 HY51

[Fijay]

Hi Guys,
I am getting a spare FOB Key from Nissan in Japan through a friend. But Nissan Tokyo wanted me to get a code from the car. Nissan Dealership said if they get the code, it has to be used within 10mins (Don't know why or how that is possible). After which I'll have to pay them additional $150 to program the key once received.
Long story short, my friend visited Nissan in Tokyo and was able to get the location of the code from the car, which is on the cylinder of key hole on Driver side, which can only be accessed by removing the door panel. I have only seen a bolt in the door opener area, and in the process snapped my Wood trim.
Has anyone here removed the door panel of same car before or know how to remove it so I can get access to the key cylinder to get the code, please?
Thanks.