I met a guy on Instagram who was nice at first. We then chatted on WhatsApp. He has a Chinese phone number and lives in New York City for work. He introduced me to this trading platform and I invested and traded on it for a few months. When it came time to withdraw, they asked for 20% tax upfront before I am allowed to withdraw. I didn’t know what else to do so I paid the fee. After initiated it said it couldn’t go through because the finance department mistyped by bank card. I would be responsible for this mistake and would have to pay a deposit of about $20000 by this Wednesday or face certain consequences. Everything sounds fishy to me now looking back, I am such a fool. Please advise me what to do? My account balance now is frozen.