Adds funds to an existing Digital Mastercard.

Sandbox: No network call, no balance debit, no transaction logged. Returns a simulated success response.

Live: IP check → card status check → balance check → PentrraWallet card network → developer balance debited → transaction logged.

Frozen, cancelled, terminated, or blocked cards cannot be funded.

Fee structure: Fixed fee + percentage of the funded amount, based on your active plan.