https://www.westpac.com.au/faq/business-how-can-i-manage-the-signatories-account/
How can I manage the signatories for my business account? | Westpac
Needing to update who is a signatory to your business account. Use this form to add or remove a signatory as well as update personal joint accounts operating...
how can ifor my businessthe signatoriesmanage