I was encountering an error with rendering of radio buttons. This happened when a contact form was published as a module within the pop-up box.
I contacted support and within an hour got the first response.
The issue was not with the pop-up box but with the template CSS styling.
The developer walked that extra mile to help me and after nearly 17 to 18 email exchanges and him working on my site for nearly 2 hours, the issue was finally resolved.
Rarely have I come across such excellent customer centric support where someone goes that extra mile to help you. And that too knowing that it is not your component which is at fault!
Amazing extension and above all, amazing support.