The client's block is not set by the freelancer. The client will enter their name and title when they sign the contact.
Your name, company name, and title are taken from the defaults in your settings, but you can also create them in the first step of creating a contract.
Please note that if you edit this information in settings, it will not change existing contracts. It will only change those created after the change was made.
Your name and title from https://app.hellobonsai.com/settings/account
Your company name from https://app.hellobonsai.com/settings/company