well there was a 18$ no deposit promocode thing saying i could withdraw but now im at 2000$ still dont know what too say xd i want too deposit they have support but they say i have too deposit 6$ too withdraw all should i just block this site not look back or what xd seems sketch

need help is it scam or not won 1000$ on it telling me i need too deposit 6$ too take my money out seems fishy what u guys think