Log in to your Numan account

Select the treatment you want to update payment details for

Click on the ‘Edit’ button next to the payment method you wish to update

Enter the new payment details and press 'Save'

When you click 'Save', a transaction of £0 will be charged to the new card you have entered. You need to approve this transaction in your mobile banking app.

Once this £0 transaction has been approved, your payment details will be updated