I sent my coins from an independent site where I had a wallet, I checked the status on blockchain.info yet it says there has been no sorts of transactions on that address.
When using a hosted (shared) EWallet provider, your withdrawal is simply a request for the operator of that wallet to send the funds from their wallet. If you aren't seeing it in the blockchain, the operator didn't send it.
If this was InstaWallet, they just had wallet/bitcoind issues recently hat should be resolved but if not check their thread for the latest as you may need to contact the operator directly.