[Michael Burns]

I need some help please. I have got way too many users that are checking out without entering a coupon then after their receipt hits their email (obviously) they call or email and say the coupon did not work. The coupons have been tested and are totally functional the user is not entering them or ensuring that a discount is shown at the checkout page before checking out.

I have a resolution that may be useful for many that could have this issue but I am not well enough versed in code to accomplish the feat. There are two pictures attached to this post. One as the standard page and the second as the modified page (as I would like it). What I need is on the checkout page there is a check box at the bottom before the submit order button they have to check before being able to checkout and apply payment.
What I would like is the 2 additional buttons one says I do not have a coupon... the other says the coupon is applied and shows a discount above.....

The point is if they check the box that says no coupon... and then check the agree to terms they can go on to payment ... IF they Check I have applied coupon.... and there is no discount showing above... then they can not get passed that page. This will prompt them to make sure they have the coupon entered and the discount is applied.

Hopefully this little radio button will keep me from having to credit their cards after the transactions for the discounts they assured me they added to the cart.

I have created multiple users and checked with both logged in and new user not logged in and tested the functionality of the cart so I know it is working correctly.

Thank you so much if you can help with this code and what would be needed.

xcart version 4.4.3 nothing too special installed.