Unable to Trade the PancakeSwap Token I Purchased

I created a Binance account through a user on Telegram, deposited money, and followed instructions to invest in a rising coin. However, when attempting to exit the transaction, I was told I needed to deposit an additional $300 to unlock the sale, on top of the $200 I already invested in the previous transaction. Refusing to comply resulted in being blocked, and now I can't retrieve the deposited money. I demand a full refund of the entire amount deposited into the account. Otherwise, I will file a legal complaint through my attorney. Please assist.