[Resolved]  Olymp Trade — credited amount is again debited from my card.

So you're saying that at first Olymp Trade makes a withdrawal to your bank account, and then they make a deposit once again, right? And you claim that's an automatic deposit option... do you realize that's plain impossible? Dude, this ain't some Netflix subscription, broker accounts simply don't allow for automatic transfers! Even if they did, nobody would manage to transfer money from your bank account without your consent.
So someone is obviously lying here - either bank, or you. I don't know which bank you're working with, but I doubt they would bother to arrange ""the murkiest scam of the century"" just to steal your couple dozen bucks. So here's the only conclusion - maybe you've forgotten to mention something in your story? :))) So far, it doesn't really make any sense.

What I really did like about this broker is their site, they have everything fully details and they have made the website in a manner than a person could read and understand without moving around a lot. By the way, I am new to the platform and I am building my account slowly. I'm glad I've already received the first withdrawal, it actually happened within a day, even though according to the rules it might take up to 5 days.I did not trade in the demo account, because the Minimal deposit is only 10$. I do not believe practicing in demo will help a lot, although it may differ from person to person.