Discount on Checkout does not apply to price

Hello,

I’ve added a 5% discount to credit card payments to my eCommerce store, in order to encourage customers to pay by card, but unfortunately the price only updates after you press the button of Placing the order. Afterwards, it’s ok, the payment gateway is correct.
The biggest issue is that in this way, the order goes in Woocommerce with the price without discount. And when I automatically make the invoices the price is wrong. So I need to update all the invoices manually in order to include the discount.

Any idea how I can make that checkbox for the payment to automatically apply the discount to the price on the Checkout page?

Thanks!

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