There's an issue with the demo:
- First try was fine but the issues start at 2nd try:
in normal usage you should redirect customers to invoice url so for stop losing visitors we use javascript for showing demo but JavaScript does not work in some browsers. Your invoice will be made but will not open on the new page and you think the invoice has not been created and you will try again.
- 3rd try (why there's a limit for testing it?):
yes just to stop bots in demo.
You might want to update/edit your "FAQ page".
Yes, the FAQ page has to be prepared faster, but we have put a priority on the preparation of free plugins.