Update authenticate-your-user.html.md.erb

source/integrate-with-integration-environment/authenticate-your-user.html.md.erb

@@ -175,7 +175,7 @@ Use the guidance in the following table to replace placeholder values in your ex
 | `ui_locales`    | Optional             | GOV.UK One Login supports English and Welsh as language choices. <br><br> If your service is in Welsh, you may want to display GOV.UK One Login in Welsh for a consistent user experience. You can use `ui_locales` to do this. <br> <br> In the `ui_locales` parameter, you can choose either `en` (English) or `cy` (Welsh). <br><br> Using `ui_locales` is optional. If you do not include it, your service will continue using English by default. <br><br> GOV.UK One Login does not support any other languages. |
 | `vtr`           | Optional             | The `vtr` parameter represents ‘Vectors of Trust’ where you request authentication and, optionally, identity proving. For example, if you want the medium level of authentication and medium identity confidence, request `vtr=[“Cl.Cm.P2”]`. <br><br>You selected your Vector of Trust when you [chose the level of authentication][integrate.choose-level-of-auth] and [the level of identity confidence][integrate.choose-level-of-confidence] for your service.<br><br>You can read more about how to combine the vectors for authentication level and identity confidence in [Section 3 of RFC 8485](https://datatracker.ietf.org/doc/html/rfc8485#section-3.1). If you need identity proving, you must request `Cl.Cm` (the medium level of authentication).<br><br>If you do not specify the `vtr` parameter, your service will automatically log your users in at the medium level of authentication (`Cl.Cm`). This means you will not receive identity attributes in your response. |
 | `claims`        | Optional             | To get the identity attributes your service needs, you should specify these in the `claims` parameter using the `/userinfo` endpoint. The `/userinfo` endpoint returns a JSON object listing the requested claims.<br><br>You can read more about [choosing which user attributes your service can request][integrate.choose-user-attributes].<br><br>You can [read more about the structure of the claims request in OpenID Connect section 5.5](https://openid.net/specs/openid-connect-core-1_0.html#ClaimsParameter). |
-| `max_age`       | Optional             | `max_age` is only available to services not on the GOV.UK domain and those handling particularly sensitive data. Contact GOV.UK One Login support (https://www.sign-in.service.gov.uk/support) for more information. When the `max_age` parameter is included in your request, your user will be forced to reauthenticate if the time in seconds since authentication is greater than `max_age`. `max_age` must be set to zero or a positive integer. |
+| `max_age`       | Optional             | `max_age` is only available to services not on the GOV.UK domain and those handling particularly sensitive data. When the `max_age` parameter is included in your request, your user will be forced to re-authenticate if the time in seconds since authentication is greater than `max_age`. `max_age` must be set to zero or a positive integer. <br><br>You'll need to [contact GOV.UK One Login support](https://www.sign-in.service.gov.uk/support) to request to use `max_age`. |
 
 
 ### Generate an authorisation code