Hi 

To display links only if the user does not belong to the helpdesk administrator group in the Website module, you can use the following code:

```

<t t-if="not request.env.user.has_group('helpdesk.helpdesk_admin_group')">

    <!-- Your link code here -->

</t>

```

This code uses a template condition (`<t t-if>`) to check if the current user does not have the helpdesk administrator group (`'helpdesk.helpdesk_admin_group'`). If the user does not belong to the group, the links inside the `<t>` block will be displayed.

Please note that you need to replace `'helpdesk.helpdesk_admin_group'` with the actual technical name of your helpdesk administrator group.

Hope it helps