Maybe someone can call me or start a ticket because I don't think we are on the same page. I can't send values or test anything. As of right now, every test I run gives me the same message on paypals website
"This invoice has already been paid. For more information, please contact the merchant."
I tried opening another browser and nothing works. This only happens on my second transaction. The first one went fine, I can't get another successful transaction to get to my success page. Maybe you want me to pass values to another page but I don't know which one or how to do that.
Can someone call me?