It is not possible to change the PIN on your physical card.
The PIN for your physical card is the one sent to you via text message when you activated your card. Additionally, you can request it at any time through your app/platform – simply go to the "card" section in your profile.
Select the "View PIN" option and you will receive an authentication code. By entering the digits into the app, you will be able to view the PIN for 10 seconds and even request that an SMS with your Coverflex card code be sent to you.