If you own a domain, you automatically become a target for various scams and phishing practices. Every domain owner has received emails with subjects like "mydomain.cz Final Notice." The email content typically warns of an imminent domain expiration and offers to renew it for usually $86 USD. The price and expiration date do not match reality.
This phishing email, for example, offers to renew a CZ domain for $86 USD (nearly 2000 CZK), even though the market price for the domain is around 185 CZK including VAT. The email appears very trustworthy, and if you click on the renewal link, you are redirected to a legitimate-looking payment gateway.
Generally, domains can only be renewed by authorized registrars and their administrators. Therefore, even if you pay through this email, the domain will not actually be renewed.
Always renew your domain only through your registrar to ensure everything is in order.