Here it is the form to proceed with XBS redeem.

https://docs.google.com/forms/d/e/1FAIpQLSdx-tcLW8AAMMx5YmH9UlEQgYTnKKJB-O-9RqTFIhdUmA2nRw/viewform?usp=sf_link

Please follow the following instructions:

1) Open your BTC wallet (you can't do this from exchanges) and transfer your BTC funds to a new and fresh BTC address, preferably on a different computer so to ensure it's a completely different private key.

2) Export the private keys from your (now empty) old BTC wallet. The procedure to export private keys depends on which wallet you are using.

3) Fill the form with your private key and email. Double check every information because it's the only way your can correctly claim your free balances.

If you follow those simple instructions your actual BTC funds will be safe and your succesfully redeem XBS.

Redeem phase will last until block 480000.
You can redeem XBS also with BCC private keys.