I will make a small update here.
they (or he, because I think one person is behind everything) are still active on their service, but apparently, they decide not to respond to complaints. until now he only gave responses here on the forum through PM, but even that stopped.
I tried to contact him through live chat on the website, asking a banal question, and pretending to be a future customer and I got a reply in a normal time period, around 3 min.
it seems that it is still accepting new users while ignoring the existing ones and keeping their money. I would say an obvious exit scam.



even if there is a bug, they should inform all existing users and temporarily stop the registration of new ones, because their system does not work.
I'm not sure I can say sorry for someone's loss here, especially not for the more experienced members.