For you information, a few of exchanges process withdrawals via Smart Contracts,
but these kinds of transactions are not compatible with all ETH wallets.
1) Since Bithumb Singaporeis not permitting Smart Contract Methods-used-deposits and those deposits are not automatically dealt with.
2) If you withdrew ETH from the exchange using Smart Contract Methods, please send an email addressed to [email protected], including TXID, deposit amoutns, etc.
※ It could take more than 1 week for those deposits to be processed after the related request is submitted.