If you don't know about doing a trade, then don't do trade.
I already see so many offer like this copy-trade, robot and other things all service ended witht he same situation losing his money customer but guess what the owner/company service still ask you money even you are on the losing position to pay the service.
Well, it is for a fact that you are using their services, so there's nothing odd about them asking for payment for it. If you started blaming them, then the problem starts with you since originally, you were the one that looked for them. The issue is that most people that adopt such services think they'd get a guarantee payment when trading itself is 50/50 most of the time.
If that's what most of the copy traders do but with what I have observed, they simply copy trade and leave their portfolio depending on that copied trader. It is needed to learn while copying others trade because not all of the time you'll just copy trade.
It's still very recommended to trade on your and make your own strategy which will benefit you. And in that case, you'll be the one that will be copied as you progress.
Well, it is called copy trading for a reason, and really, most of those that do that are just ignorant of trading and/or have no time to manage their own portfolio. If they're doing it as a sideline, it could be ignored, but if they were trying to learn how to trade? Copy trading isn't the key to that.