Another scam to watch out for involves an official looking notice by mail or email requesting payment for the renewal of your domain name. The information about your domain is public information and so any unscrupulous person can send you a renewal notice. These companies typically charge well above market rates and provide substandard service.
To avoid falling for the domain renewal notice scam keep track of who is the registrar of your domain and what they charge per year. If this has already happened to you, consider reporting the company to the Wisconsin Department of Justice and also see if your credit card company can cancel or dispute the charges