LEGO City Undercover PS4 - 6-digit code / cheat?

I recently got the game LEGOO City Undercover for PS4 and I also wanted to try some code / cheats, but the 6-digit ones do not work. According to the Internet you should only enter the ground floor at the police station, but it does not work - why not - what do I have to do / where do I have to enter the 6-digit code?

1. Do not cheat.
2. Ask Lego maybe you can help them. If you need a link to contact Lego, let me know.