Quote Originally Posted by bonheddwr View Post
I've just noticed a major issue with this plugin, has anyone else had the same issue? We don't often offer coupons, but have just offered a 20% discount for a week to previous customers on our site. People can choose to pay via Worldpay or Paypal.

There haven't been any issue for customers who have chosen to pay via Paypal, but for the customers choosing Worldpay, when they insert the Coupon Code, it is worked out how much they should pay on our site with 20% off, but when they leave our site and arrive on the Worldpay site ANOTHER 20% has been taken off!

Is this a bug, or just an issue with our site?

v1.5.5 // https://www.welsh-lovespoons.co.uk/

Thanks for any advice.
Unfortunately I haven't manged to solve this issue. What I have done is:

1, Turned on debugging. I now receive an email every time somone orders via Worldpay. I've looked through the ones that have used the coupon code and cannot really see what's going wrong. It seems that both the correct and incorrect prices are included in the emails.
2, I've tried a different Voucher and code.
3, I un-installed the plugin, and installed a clean version.
4, I noticed that this issue didn't arise on another website that I run using the save version of Zen Cart, I therefore copied all of the plugin files from the website cadwyngifts.com (where there wasn't an issue) to welsh-lovespoons.co.uk (where there is an issue).

There is still no issue with Paypal on either site when using a coupon. The correct amount is sent to their site. ANy advice on what next I can do? Are there other files (not the plugin ones) that I should try to copy from the website where there isn't an issue to the one where there is an issue?

Thanks for any advice.