Whether a hosting account meets the system requirements of your sites and how easy it'll be for you to control that account are two rather important things. In the event you experience any problems or your sites cannot work on the web hosting platform because they were designed to run in another system environment, it would be rather irritating if you cannot get a complete or prorated refund and various companies on the market have such policies. This way, you will end up losing money as you will not be able to use a service you've paid for. To be on the safe side, you need to check the refund policies of any service provider before you buy a web hosting plan, so in case you cannot use the account or simply decide that you do not want to use it for any other reason, you can request your money back.