Not your key, not your coin. This kind of service is involving very high risk.
Why don't you explain the reason why people should safekeeping their coins in your private address? No yield? No safety?

Also charging 0.2 eth worth $400 makes no sense just to withdraw our money. I'd rather spend it to buy a ledger flex brand new, which only cost me $250 instead of using your service.

It doesn't force me to pay 0.2 eth for the service fees. I can also keep my money safely in my pocket, and withdraw it anytime as i want.
