post https://secure.vend-o.com/api/gateway/update-payment-method
The Update Payment Method API may be used to change payment method for recurring subscriptions
When changing the payment method with 3ds authorization please follow this flow
- Call update-payment-method request with new payment details
- Store verification_id value returned together with verification_url
- Redirect the customer to verification_url
- Call update-payment-method again to confirm the change. Use stored "verification_id" in "payment_details" object