Doughboy m1911 code not working

[Stuba55]

My Doughboy m1911 code isn't working. I  entered the code, did the troubleshooting steps, and it still says it's locked.

[Revan2000s]

Hey.

You should redeem your code here: https://www.battlefield.com/en-gb/games/battlefield-1/redeem/triforce?status=enter-code

If you still have issues with your code, please contact with EA Advisor.

How to contact EA Advisor?