I live in The Netherlands. Two months ago, I received a fine notice because I drove a bit too fast and had a €80 fine to pay. I paid the fine the same day or we

I live in The Netherlands. Two months ago, I received a fine notice because I drove a bit too fast and had a €80 fine to pay. I paid the fine the same day or week I received it. Today I received a registered mail from somewhere in Germany. Because I had just been back from Germany again, I was worried I sped up by accident again, even though I don't remember this happening! Guess what? They actually sent me a registered letter informing me I paid the fine I had received previously. Which I paid for on-line. On their website. ¯\_(ツ)_/¯