Pitch, how did you secure the plaque in position. Mine came today and want to fix it in the same position however it doesn't lie flat. I also don't want it fixed permantly there I want to move to to its proper location when I sell the car.
I had to bend mine slightly, its easy enough as they are quite flexible, you can use the sticky fixing supplied or use some double sided trim tape on the rear of the plaque, be warned though if you do use your own double sided tape it might not stick to well to the backing on the proper tape
if it was me i would use the proper backing tape then when you move it just put some new trim tape on the back
