How to leave someone feedback?

I tried to leave feedback for someone, but the site said "you do not have permission to access this page." What can I do? I just bought some really great leopard geckos, and would like to leave the breeder some positive feedback. Please help, I'm not computer savvy!

The reason you can't post feedback is because on February 20th, I changed the system so that nearly all features where credibility of the poster can cause someone else some problems, if the poster is not a real person, now require the member to be a paid/verified member in order to do so. The ability for abuse from fake IDs and people patting themselves on the back, or falsely giving someone else negative feedback via that method was just to great a risk to the credibility of the features of the site in general. It also could affect a person or business's ability to take part in the BOI Good Guy Certification program I set up if even just one disgruntled or malicious person opened up multiple fake accounts simply to give one person a slew of fake negative ratings.

Sorry, but I am trying extremely hard to make this all work. Credibility is the key, and I have had to implement procedures that I feel are absolutely necessary at this point if FaunaClassifieds.com is going to survive for the long haul.

I hope you understand my reasoning behind how I have had to handle this.