Odd as it may sound, my question is: How do I ask a question?

I tried to send a question about a Theme issue but get the error message 'Please select the product you need support for.' (see screenshot). There is no indication as to which box this error refers to (usually you see a red dot or arrow or star or something in the box which is causing the error). I entered text or chose an option in every box, so I don't understand what is missing. For 'Choose which site' I chose the option 'Other/Not Listed' as we are rebuilding our site using the Discovery theme. If I choose the option 'pci-learning.com' then I can only choose the installed theme Blogs MU which is not the theme my query relates to. Thanks for your help.