Oh trust me I’d do that if I could, but then I’d have an extreme loss of money if I were to do that for free. People have the option to add tracking to their package in my shop, because international tracking is fairly expensive in the UK, so I can’t add it for free and the buyer has a choice to add it or not. This person, however, did not buy a tracking number.
The problem is that most people don’t ever bother to read a shop’s policies or even check where their item is being shipped from. And then cause inconveniences to the seller like this situation, sadly.