Scammers contact you through [removed by editor] and they tell that they are depositing USDT in your account but you have to open account in lincobi[removed by editor]. After opening account they will send you USDT in your lincobi wallet. But when you try to sell it will prompt insufficient etherum fee balance. If you contact them about this they will try to convince you to deposit at least 0.5 eth to complete the transaction. If you deposit your deposited amount will be lost and coins will not transfer.