im stucked in that app by inve

im stucked in that app by investing more than 400$ several months ago i just buyed mkh coin in that app then they apply some taxes on me when i rechanged more than by now all my money is not trannsfering to any account or platform can someone please help me through this situation if they know . i maked many loans but all my money is locked in that app i make withdrawals but its in pending from one month.