To check the status of your crypto withdrawal, log into your Netcoins account. On your balances page, scroll down to the Transactions section.
Find the withdrawal that you are looking for, and click on the destination wallet address (shown below), and this will open a Blockchair link.
The Blockchair link will show you whether the coins have arrived at the destination wallet, or if it is pending network confirmation. It will also contain the transaction hash of the transaction.
If you cannot find the withdrawal in your list of transactions, it could be that you have initiated the withdrawal but have not confirmed it by clicking the secure confirmation link sent to your email. If you do not confirm your withdrawal via the secure email link, the withdrawal will not complete and the coins will not send. Please see our support article here on how to withdraw your cryptocurrency, including the confirmation step.