can't withdraw money

scam investors, I deposited 5k but when there was a profit of 9k, it did not allow withdrawal, at first it shows to withdraw, just face up cmnd and place an order 4 hours before the money will return to the account after 4 hours that I placed an order from September 27 to now 3 days and still can't withdraw, last week I placed but the exchange did not approve the order to withdraw