Withdrawal and selling of bitcoin [duplicate]

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I earned $52000 with bitcoin trading using a short term trading account in which i would get a wallet address to do transactions, when I went to withdraw i was told that I needed to pay tax on money earned. This i paid and then when that cleared i was accused that I was involved in money laundering and asked to pay a verification fee in order to withdraw.Have I been scammed and is there any way I can proceed to withdraw money still in my account, or is this just lost and can never be withdrawn