the amount of the discount on the invoice does not appear correctly

I have installed Woocommerce PDF Invoices and Packing Slips Premiun Templates.
In the PDF of the invoice that is generated after a purchase in the amounts does not leave the credit applied even if you put that item.
If I put it in COLUMNS, it appears correct, but if I put it in TOTALES or only the tax amount of the discount comes out or nothing comes out. As if the discounted amount was zero.
If I set the DISCOUNT field to TOTAL to show it, it gives me two alternatives:
-Taxed: then shows ONLY the amount of taxes (VAT) not of the full discount applied
-No taxes: then it shows nothing.

We need the amount of the credit used to be shown at the bottom of the invoice along with the breakdown of the products, taxes, transportation, etc.

Thanks a lot