We have various refund policies based on the type of product you buy.
Unless a very particular scenario justifies it, we won't offer refunds because even if we refund your money, there is no way for you to "return" the asset and code. The end result is that you keep both the money and the code.
Take a look into the documentation, demos, videos and reviews before you purchase. Also, feel free to ask any questions. See the contact us page to get our email address.