To update your payment details:
Log into aria-i.com.
Click on your profile icon in the bottom left corner, and then 'My plans'.
Click 'Manage my subscription'.
Make changes to your card details under the 'Payment Method' section.
Alternatively, cancel your current subscription and begin a new subscription at the end of your next billing cycle, inputting your new card details. Don't worry, your chats will still be there if you make a new subscription under the same account.
If you require any further changes to be made to your billing / payment details, please contact our support team by emailing support@nkoda.com.