I'd need to prove it, they'd skillfully dodge the request, I'd have to hire expensive lawyers (500/hr) and make a more formal request that's harder to dodge, they'd say the data is distributed across the globe in multiple jurisdictions in a very complex form, I'd have to hire an entire law company that works with international cases (1M/month?), they'd drag their feet and mud the discovery requests as much as possible and at the end of the day it'll be about who runs out of money first and who has better connections. The copyright law is made to resolve disputes between big companies.
Copyright applies there too, and if you sued them for it, it's not inconceivable you might win.