You're right, Uny gets hundreds of PMs/emails a week, so many that she can't possibly reply right away to all of them or even most of them lol and keep up with the forum too. She tries her best to prioritize them.
If you have questions you could always post them on the forum, that way you'll be assured Uny will see it (she reads every post) and someone else might be able to help you. ;)