I have purchased some application before. Later, developers claimed that their application become free, like Link Bubble etc. Can I get my refund? I know that there is a 15 minutes trial after purchase. But I have purchase a Input method application, however 15 minutes trial cannot let me try all functions. And after 15 minutes I cannot get my refund. Can I get my refund back in this condition?
I take Link Bubble as an example, I really like this application. I'd like to purchase this application whenever how much it cost. However there is really a problem that I have purchase one application years ago and never used later. It really bothered me.