Hi Topo,
Welcome to the Community!
If your current plan includes a pay on time discount, then you should expect to see two payable amounts listed on your invoices. One of these is the 'discounted amount' which is the discounted total due on or before the due date, and the other is the 'total due' amount which is the amount due if the bill is paid after the due date.
Hopefully this clears things up, but please let me know if it doesn't!
Kind regards,
Jayden