I purchased the PopUp Pro Plugin and found it be anything

I purchased the PopUp Pro Plugin and found it be anything but pro; it lacked basic functionality (in my case, I purchased it in order to have a simple, image-based popup). It lacked the ability; I know it's tough to build something to appeal to the largest number of people possible. Perhaps my case is an "edge case"? Regardless I am now a touch over budget on the project and would like to request a full refund. I know it's $19, but every bit of $ counts running a small shop with tight budgets.

Thank you; your products is great it is simply not for me (a simple demo would have verified that, but i was unable to find one anywhere).