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 The postcode I entered does not show the correct/exact address, what should I do? How do I register on Dr. iQ ? My account has been removed. What do I do? Why my account was rejected? How do I request a linkage key on the app?