I'm trying to help a friend with an issue on a site. When a coupon is used so the shopper gets their product for the shipping costs which in this case is $1.95 they get everything right visually up to the payment. When they click to pay and go to paypal they are charged a mysterious extra $1. Does anyone know why this might be?
I'm guessing that since we're sending a $0 payment something on the paypa side can't deal with that???
Need help.
Thank you