To access the billing information, we go to the "Management" module and choose the "Kinderpedia Subscription" section.
In order to be able to change the card information, we must first delete the existing data by clicking on the red button at the top right "Delete this card from your account".

In order to be able to add new information, we must pay an invoice. If we do not currently have an invoice to pay, we will have to wait until the next one is generated. To pay an invoice, click on the "Actions" button next to the invoice, followed by "Pay Online".

Then a new screen will open where we can enter the new card information.
After entering the data and clicking "Pay Invoice", the new card information will be automatically saved for future payments.