On the request details page
If you receive a request from a PATCHS patient who is not registered at your practice you should update their registration status to Not Registered.
You should then use the 'Reject - Patient Not Registered' button to reject the request. This will advise the patient by email that they cannot respond to their request because they are not a registered patient.
If a Not Registered patient tries to contact the practice using PATCHS, they won't be able to make a request and will be advised to contact the practice.