Credit Card Merchant

I charged a service that was never provided. How do I get credit card refund if merchant is noncompliant?

How many “Merchant Marines” actually are officers in the “United States Maritime Service”?

I thought it was very few, but I found websites like the one showed below. If there are not that many officers, who purchases these uniforms, for the companies to continue carrying them? http://catalog.lighthouseuniform.com/merchantmarine/#top