Voucher Not Applied With Credit Card Purchase

[mj99]

Here's the problem I'm having.

 

When a buyer applies a voucher balance to a purchase that does not cover the total and a credit card is used to pay the difference, all looks just as it should. The email notification looks right and the system records the payment correctly. The big problem is that the credit card is actually charged for the full amount, without the voucher discount.

 

Example:

 

Sub-Total: $1,000.00

Gift Vouchers (-) : $908.83

Total: $91.17

 

 

In this example the credit card is charged the sub-total amount of $1,000.

 

This does not happen when the balance is paid with paypal. Only credit card (authorize.net).