Processing error :
"Processing error. -19 Authentication failed" this error occurs most often because the card issuing bank refused the transaction.
Banks have various policies based on:
- Payment amount.
- Type of card: business card or not.
- The card is enrolled in 3DSecure or not,
- The shop is offshore or not etc...
Even if you have been successfully complete a transaction recently, where as the bank may still refuse for your payment transaction based on the Bank Policies.
To find out more information about the payment Transaction Failur, you must contact your bank.