If you want to update the address on your policy please use this address update form, this form can also be used to update the address for any other product(s) you have with MAS.

If you want to change your payment method, you can set up a new direct debit here.

Alternatively, let us know how we can help by selecting one of the options from the drop down list below and submitting the form on this page.

For assistance with anything else not listed here, please call 0800 800 627.


By completing this form you authorise MAS to collect and use your personal information to contact you about MAS products and services. By providing your email address, you consent to receive emails from us from time to time about our products and services. Any emails we send will contain an option for you to unsubscribe so you can opt-out at any time. 

MAS has a lending referral arrangement in place with Westpac. If you have enquired about Loans – Personal or Business, then you consent for MAS to disclose the information provided on this form to Westpac to progress your enquiry.

Medical Insurance Society Limited has an A- rating with a positive outlook from approved rating agency Standard & Poor’s, and this reflects our ability to pay claims.