Refund?

Hi, I installed Kronos but I wasn't able to manually configure posts a time to expire. For example, I had posts called "Events" and wanted to expire posts after the "Events" time (not the post time), and wasn't able to do this (or figure it out if it is supported). I had to use a different plugin to get that functionality and unfortunately dont have any other uses for Kronos. Can I get a refund?