I cannot withdraw.

I was told that I could borrow investment funds, so I received a $20,000 loan and it was reflected in my trading account. I made a profit from the transaction, so I contacted them to pay it back in about 3 days, but they said they couldn't pay it off from their bank account, so they asked me to transfer $20,000 in cash first. I was told that after paying back $20,000 in cash, I could freely withdraw funds from my account. Is this a fraudulent case? When I consulted a lawyer, I was told that it was still a fraud. They are registered in the LINE group without permission, and that is where they claim to be an investment group. Please be aware of similar cases.

The following is the original recommendation

出金出来ません。

投資資金を借りれるとのことで、2万ドル融資を受けて取引き口座に反映されました。
取引きで利益が出たので3日ほどで返済しようと連絡しましたが、口座からは返済出来ないとのことで、先に現金で2万ドル振り込んでくださいとの事でした。
2万ドル現金で返済した後は自由に口座資金を引き出せるとの事でしたが、これは詐欺案件では？と思い弁護士に相談したところ、やはり詐欺で有るとの事でした。
勝手にLINEグループに登録されて、そこが投資グループをうたうところで、皆利益がかなり出ている様に見せかけて、どんどん高額入金を迫って来ます。
皆さん同様の案件にご注意下さいませ。