Whether a hosting account meets the system requirements of your sites and how easy it'll be for you to manage that account are two very important matters. Should you experience any kind of problems or your websites simply cannot work on the hosting platform since they were designed to run in another system environment, it would be rather unsatisfying in case you cannot get a complete or prorated refund and lots of service providers out there have such policies. That way, you will end up losing money as you won't be able to use a service you have paid for. To be on the safe side, you'd better check the refund policies of any company before you get 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 any other reason, you can request a refund.