This is quite pathetic. When your customer is not happy just find a way to make them so. Start from solving their problems, then free license extension and get

This is quite pathetic. When your customer is not happy just find a way to make them so. Start from solving their problems, then free license extension and get down to the refund. If you are actually losing worthy money at the end of the year due to refunds, take a hard look at yourself, your business and the unreasonable expectation you set while selling your software. We apply these principles to selling a software with $6K price tag and it works just fine, it should work much better and easier with $300. P.S. If your policy is not to make any refunds (which is a bad policy) then make it clear, and when someone tells you stuff like this tell them to "Sorry you agreed our sales terms, no refunds. Thanks." And if they are aggressive, don't answer. Also don't blog about it, so at least rest of the world doesn't know that you are charging people for something they can't use and then announcing them bunch of terrorist because they told you that they'll write their bad experience about your product in various forums -even when they choose a bad way to express this-.