I was sending a 2kg DHL package from Germany to a non-EU country (not the first time). My weight scale showed 2.03kg and I thought it’s not a big deal. I used a Packstation to hand over my delivery to DHL. The package came back to me with [these yellow stickers](https://imgur.com/wQnMzG9) from DeutschePost on it.
But how do I pay these dues? And what will happen if I don’t? Because simply paying for another 2kg package (~€20) is cheaper than this fine.