We're not a legal service so I'm certainly not going to embark on a tirade of legal advice. But we do try and advise what you should consider for your website, whether you follow our suggestions or not is, of course, up to you.
Though it isn't law to have Terms & Conditions on your website, it is strongly recommended.
Setting out the conditions under which users access your website, ensure your liabilities are limited and that all rights are respected. It is also an opportunity to set out how you do business. This ensures your clients have a clear understanding of how you operate. If you get it right then hopefully you'll never end up in any unpleasantness or worse, legal battles.
If you have a form on your website so that people can send you feedback or get in contact you are probably retaining data. Their email address, name even telephone number. As a result you are required to state what you intend for that data and how you will protect it. You may also be required to register with the Information Commissioners Office. There is a page on that website that you can easily test whether you'll need to or not.
Cavespider, covering your back