Scam for sure
Withdraw a small amount twice, then you can not withdraw unless you pay 210,000 yen for the third time. Then, I deposit 350,000 yen for account freezing fee and request 100,000 yen for delinquency this time. you just cannot withdraw.
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Scam
The following is the original recommendation
間違えなく詐欺
少額2回出金、その後3回目は21万円支払いしなければ出金出来ない、その後口座凍結費35万円入金、今度は延滞金10万円要求、出金出来ない