I agree with the ridiculousness of it all, but to be fair, there is no such thing as a 2019 iPhone XS. It's a 2018 iPhone XS regardless of when it was purchased

I agree with the ridiculousness of it all, but to be fair, there is no such thing as a 2019 iPhone XS. It's a 2018 iPhone XS regardless of when it was purchased or manufactured, although that honestly just makes your situation even more ridiculous.