I have come across such scammer scheme before they can credit your account on the site with any amount of either bitcoin or ethereum and at the end ask you to deposit some amount in into the said account or an address which they will provide and if you fall for it the run aware and the credit on their site is useless. We have to be mindful on any opportunity before we dive in, scammers are real.
Scammers are really a pest in our investments and they are taking those money that we have worked for several time.
But we are the one who are accountable with our own awareness and prevention to avoid being their victim in their different schemes and strategies.
Feed your knowledge towards awareness on those scammers who can take everything from you. Also be mindful with those FAKE GIVEAWAYS because that's pretty obvious a scam, there's no easy money in cryptocurrency especially that it requires skills and patience to grow your assets. So, as soon as possible, read a lot of stories and tips on how to prevent being a victim of scams.
That's why if we're entering finance, we should be aware that there will be always people that will steal your money. We shouldn't just study how things work in investment, we should also study the differences between fake and legit platforms to avoid being scammed.
Extending your intellect on schemes like this is a must since there are plenty of scammers on the internet, we can't avoid them. If you get scammed, then it's your fault for being greedy or sometimes being careless. I don't usually offer help and don't talk too much to other users that I don't personally know.