Whether a web hosting account meets the system requirements of your sites and how easy it'll be for you to maintain that account are two really important things. If you experience any issues or your sites simply cannot work on the hosting platform since they were designed to run in some other system environment, it would be rather inconvenient if you cannot get a complete or prorated refund and various service providers out there have such policies. Thus, you will end up losing cash as you won't be able to use a service you have paid for. To be on the safe side, you should check the refund policies of any company before you purchase an internet hosting plan, so in case you cannot work with the account or simply decide that you don't want to use it for whatever reason, you can request a refund.