How can I edit my postcode if it's wrong or has been changed? 30 March 2021 07:31 Updated To edit your postcode, follow these steps: Tap the profile icon. Select My Profile. Tap the Postcode field and edit it. Tap Update. Related articles How can I change my personal details? I have a learning difficulty, What can you provide as an alternative to the app? Why have I been deregistered? How do I request a linkage key on the app? Can I register my child(ren) under 16 age with Dr. iQ?