How Do I Request a Refund?

I submitted a high-level support request on your help desk (support area) since 5th of July (2 weeks ago!) just after I paid and uploaded the pro version onto my site. I have gotten no response from you guys and tired of waiting, I had to find another paid plugin to use. Which means your plugin is pretty useless to me now and I will like to request a refund – how do I go about this?