I'm developing a payment gatewaty for nBill (dutch iDEAL gateway).
The payment process works correctly, but i have got some problems with displaying the callback page.
I created a folder named 'ideal' and a file ideal.php at the same level as admin.ideal.
When the payment succeeds, I only see the standard 'my account' page.
The return url I used is: index.php?option=com_netinvoice&action=gateway&gateway=ideal
Anyone an idea how to solve/debug this problem.