Yesterday i send ETH to MEW. Transaction was compled bud Txid not found. This is answer from Coinexchange support.

Hi Josef,

It appears the withdrawal has successfully processed from our site.

The Ethereum network is currently congested so the transaction cannot be verified on the blockchain.

Unfortunately, there is nothing we can do to solve the issue.

Please be patient and check the Block Explorer at your discretion.

Sincerely,

CoinExchange.io Support Team