When subscribing to the majority of these iptv services (firecube) it involves paying online on interent and provdiding debit card details, name and address (i'm guessing). Surely these details can be used to find/ track you and your use of these (not so leg*l) iptv services? Is there a risk? Do they store your details? Can banks see you've paid for this service? I'm based in UK
Use Bitcoin if they accept it. I remember watching a video put out by a reseller of a major IPTV service that was being sued by direct TV, and he said they were trying to subpenea all the PayPal info fo his subscribers. Not sure if that's possible or legal, but better safe than sorry.