I bought gbtc, when the price began to fall, they froze the sale, a technical error) when it was at the bottom, as if suddenly sold! In a minute the price went up. Kitchen. Lost $ 1000. Requested the withdrawal of all money, waiting a week. Otmorozhivayut, the application in work ... tomorrow ... etc.. They should not dump all the money, they will withdraw it after they complain, but I did not see a worse broker.