If your Coinbase account has been shut down due to violations of the user agreement, your remaining balance must be withdrawn from your account.
When you sign in, you'll be prompted to withdraw all funds from your account.
Coinbase can no longer provide you with currency conversion services. To convert your digital currency, you must use a third-party brokerage or exchange.
Obtain an external address from a third-party wallet provider and enter that address to withdraw the funds. Below are some options for obtaining an external cryptocurrency address:
Bitcoin: https://www.bitcoin.org/ (under "Getting started with Bitcoin," click the "Choose your wallet" link)
Withdraw local currency
Any local currency balance will be available for withdrawal to a previously verified bank account.
When you've successfully withdrawn all funds from your Coinbase account, you can close your account.