I’m not allowed to put the link up but here is the text from the website:
If you would like to receive an automated update on the status of your application you can do so by sending an email to
[email protected] In the subject line of your email please type ‘Medical’ for an update on your medical transfer application or ‘DOC155’ for an update on your licence transfer application. In the main body of the email please type your CAA licence reference number. Please remove all other text from the email before sending.