Hi Florian, give us a link to change credit card number ! 
It should be possible via
where you can add a new payment method and remove an existing one.
Let me know if it's working. Thank you for your ongoing support 
Hi Florian, give us a link to change credit card number !
It should be possible via
where you can add a new payment method and remove an existing one.
Let me know if it's working. Thank you for your ongoing support