You can either sell this holding through the existing broker or apply for a HIN transfer request through OpenMarkets, after which we will be able to sell the holding.
You will need to open an account with OpenMarkets before you transfer the HIN.
For information on how to open up a trading account see this article
Upon submitting your request for a new account, you can also include a HIN transfer request with your application. Or alternatively, submit this request separately once your account is open. Information on HIN transfers is also available on our Help Centre with the form itself available in our Forms Library