To withdraw your funds click on the hamburger icon.
Then click on "Accounts dashboard".
Click on tree dots and on "Withdrawal".
Click on the "Withdrawal" button.
Type amount to withdraw, your 2FA Code, and click "Confirm".
Scroll down to choose already confirmed address or enter your new wallet address by clicking "+" icon. 
Type your wallet address.
You will see a notification that for safety reasons PrimeBit sent you an email to confirm your new wallet address.
Go to your mailbox and open email "Please verify your withdrawal address". If you don't find it check also spam and other boxes ("Updates", "Promotions", or "Social" tabs in Gmail).
Click on the "Verify address" button.
It will redirect you to PrimeBit WebTrader and confirmation pop up should be visible. 
Once the withdrawal request is processed, you will receive an email notification. Usually, the transactions are processed quickly, but at times it may take up to 24 hours depending on the network load.
Go to PrimeBit Webtrader, enter Accounts section and click on "Withdrawals history".
Click on downside arrow to view details of your withdrawal request. 
You can click on tx to view your transaction`s status on blockchain.