This site comes up at the top of Google when you look for European health card. They have the brass neck to charge £9.99 for an EU Health Insurance Card or to renew your current one. They leave a large gap on the page before they mention that you can also get the card from the NHS site, which means you will almost definitely miss that message. The NHS site is completely FREE https://www.ehic.org.uk. Don't be fooled into spending £9.99 unnecessarily.