Delete Payment Method

Marks a stored payment method as inactive using its unique identifier. The method is no longer available for future charges, including subscriptions and one-time payments, but is not physically deleted from the system.

This approach allows for historical consistency in billing and audit logs, while preventing further use of the method. Typical use cases include expired cards, user-requested removal, or compliance-driven deactivation.

Before deactivating, ensure the payment method is not the primary one for any active subscriptions to avoid disruption.