If the product you buy doesn't meet your expectations or fails to fulfill the promises made by the seller, then it's fair to ask for your money back. I've often seen sellers use the following claim on their sales pages: they say, “Why don't you test it out and see if you like it? If you don't, we'll give you every penny back—no questions asked.”

This model works extremely well with ecommerce businesses,especially the dropshipping model. Here’s how it works: you give away a product for free,but buyers pay a small shipping and handling fee—typically $9.95.