If you used PayPal to pay for your KUNSTMATRIX subscription and need to update your payment information (change payment method or update credit card information), you will need to log in to your Paypal account to make these changes.

Here’s how to change your funding source for preapproved payments:

1. Log in to your PayPal account.
2. Click the Settings icon.
3. Click the Payments tab.
4. Click Manage automatic payments under "Automatic payments."
5. Click the name of the merchant for the agreement you want to change.

Under "Payment method," click Change next to the funding source you need to change.

Paypal will use that updated payment information for the next recurring payment taken for your subscription.