This kind of action by companies should be criminal, because they just destroyed economic activity worth at least $10000, because they didn't want to spend a little more on due diligence. Which could even have been put up as a bond by their client. My guess is that it would have cost <1 hour's work to validate this guy, and obviously he would rather bond that than lost the $10000. But no.
But yes, jurisdiction is an issue, however damage can be done; they don’t want to lose EU and these are violations of our laws so they should be hit hard.
You’ll likely also be awarded interest and the court-appointed interest rates are nothing to sneeze at (they’re based on the banks base interest rate plus a few percent)
Edit: went and looked it up: Interest is applied from the point when the defendant received the court papers and is currently the base rate plus 5 or 9 percent points.