This service Tinkl is a bitcoin system of payments.
It's owned/managed by the same people who manages the Rock Trading Exchange:
https://tinkl.it/it/chi_siamo"Tinkl.it has been operational since 2015, founded and developed by The Rock Trading team"
("Tinkl.it è operativa dal 2015, fondata e sviluppata dal team di The Rock Trading")
The dangers are also related to the fact that they use the Rock Trading Exchange as a mean of operation ("Thanks to an agreement with The Rock Trading itself, the exchange rate risk is reduced to zero": "Grazie ad un accordo con lo stesso The Rock Trading, il rischio di cambio viene azzerato").
Both managers have accounts on bitcointalk:
eliale:
https://bitcointalksearch.org/user/eliale-35172paci:
https://bitcointalksearch.org/user/paci-15648The main manager seems to have been banned because all his lies and what he done to me (he has a huge number of negative feedbacks because of this).
But, recently, he created a new account marco777
https://bitcointalksearch.org/user/marco777-2786780.
I know all his personal details, but I'll respect bitcointalk rules and I won't post even his name, even if he signed a post with it.
I won't also give here details, to avoid crossposting, but they are very easy to find.
So, be aware of Tinkl.