I came across 'Hidden Wiki' http://zqktlwiuavvvqqt4ybvgvi7tyo4hjl5xgfuvpdf6otjiycgwqbym2qad.onion/wiki/index.php/Main_Page last week.
I found 'Premium cards' http://hbl6udan73w7qbjdey6chsu5gq5ehrfqbb73jq726kj3khnev2yarlid.onion/ in financial services block.
Decided to check them out - bought about $160 of 'pre-paid cards' - they actually response via mail premiumcards@mail2tor.com!
As soon as BTC were sent - they dissapeared.
I wrote them two times more - no response.
Then I wrote them from different mail - pretending to be different customer - and they response!
It's SCAM
, please be carefulPS maybe the whole 'Hidden Wiki' stuff is total SCAM - I don't know... and there is no technique of how to check