Scammers
Scammers! I paid $1 for 1 file, and 2 days later they charged $39 from my account. This is a real scam. And the number of negative reviews confirms it! There are a huge number of them! I have been writing to them for several days asking for a refund, but I received a response that the service has already been used and therefore they cannot return it. What kind of fool would voluntarily pay $39 for PDF files? GIVE ME BACK MY MONEY!