Speaking of these things, can
this service be considered illegal in some way?
It sounds illegal:
all issued under the name of the trusted nominees
Then again, my real name isn't LoyceV, and I'm okay using a pseudonym for privacy. I wouldn't dare use a bank card in someone else's name though, and considering their fees starting at €950, I can't think of many legit uses for which people are willing to pay this much.