When you buy a web hosting account for your sites, you could find out that it does not meet certain requirements that your script-driven apps have, or if the sites are not doing very well, you could choose that you no longer want to run them, so you could end up possessing an account that you won't really use. In this situation, it will be good if you can close the account and get your money back since you won't be able to use the service for one reason or another. Some providers offer refunds - full or prorated, and some don't, so before you buy a new account, it's recommended to check not only if the service will match your expectations and requirements, but also what refund guarantee the provider has about possible refunds.