Hey,

they eventually sent me the flight ticket, so it's definitely not a spam.

But it wasn't much usable as I needed to be sure I'll get home, so I had to bought a normal flight ticket. aBitSky eventualy sent me the ticket few hours before departure, so I couldn't be sure. Lost money for me, but the ticket was delivered, so for anyone having concerns, this company seems legit to me. They have just very bad customer service.