For those of you who have been scammed or being scammed now (my daughter currently being chased by debt collector in Austria). You can complain to the European Consumer Protection, send your complaint to the Austrian office as Prestige claim to be based in Vienna (probably a postal address for forwarding to their Nigerian owners). This is the email address info (@) europakonsument.at. Good luck and don't pay them.
More than likely Nigerian scam artists, attached is their mail to my daughter, scared the wits out of her. I have also attached my email response to them. I will be contacting the Austrian authorities which is where they claim their offices are based, but I am sure the real address is Lagos, Nigeria.