Now, I say 'me' and assume it's from Redbubble for a reason as the court documents state that there are more than one defendant in this matter and they are listed in 'Schedule A' which is 'attached'. However, there is no schedule A attached. And having gone through the other documents, I cannot find any mention of myself or anything else that would identify me directly. All I have is this email, which does not even address me directly. Nor is there any direct information regarding the actual infringement I am apparently responsible for. All the docs show is a couple of random examples of the kind of infringement they are referring to (neither has anything to do with me) as well as lots of references to numerous platforms (incl. Redbubble). Nothing definitive at all.
Having done some research, I've tried to access the US PACER courts filing system as that does appear to contain the missing 'schedule A' document, however I cannot access this as whilst I can register with the site, the only way to access immediately is to provide a credit card for them to verify and they don't seem to allow UK credit cards. However, my feeling is that Schedule A is going to be a list of anon user names and\or email addresses from the various platforms their complaint refers to.
I'm not a US citizen and nor am I or ever have been resident in the USA. So how would be best to approach this? From what I've read, it seems that these guys are well known for this approach, obviously to scare people into settling, mostly as people like me have no realistic way of fighting it without incurring crippling expense.
Would it be best to write to the court detailing the above failing on the firms part, as well as the "I'm not from the US" aspect and thus not in their jurisdiction? Or reach out to the legal firm in question and negotiate as best a settlement as possible?? Or both?

I'm speaking with a UK based lawyer tomorrow on the matter, but I obviously expect this to be very high level stuff, as clearly he's not going to be an expert in US law on this matter!!