Paying in Euros?

Hi, there. Just getting back into Ntrack after a many year hiatus, and looking to upgrade to the new version. When I go to pay, the price is in Euros, even though I am in the U.S. Just wondering if this is normal, or if I should be seeing $'s. I assume I can just pay with my cc in Euros, but seems kind of weird. Thanks!

Well I just went ahead and paid in Euros. Seems to have worked ok, so all is good.