LodgeiT uses signatory's contact details to send e-signature (via Client's Settings)
The default details are the information from the "Contact Details" -
User has an option to change directly to e-signature page.
Click the pencil icon, and it will switch to custom mode, where the user can edit name and email.
Client Settings > "General" for Birthdate
Related Article:
Process of "Out to Sign" using E-signature
How to notify signed tax form to other team members
How to send email directly to agent's mailbox
Signing Documents Electronically Under Corporations Act 2001