Since recently there have been more Ethereum deposits to Waves made from third-party exchanges and other services using smart contracts resulting from "internal transactions" payments that our gateway can't yet process and deposit to Waves accounts.
We definitely do not process deposits/withdrawals of Ethereum from/to smart contracts addresses, and we warn our users that they can lose their money if they do so. However, neither Waves nor our users can control third-party services that sometimes use smart contracts to perform the Ethereum withdraw operations.
We apologize for the inability to process such payments. We assure our users of the full safety of their payments.
Customer support service by UserEcho