Maritime Documentation Center Mislead me and others into believing they were the US Coast Guard Billings MT

"Maritime Documentation Center", is a private company that provides a web portal for renewing US Coast Guard documentation. I received a letter from them about renewing my documentation prior to receiving the official USCG letter, read it too quickly and went to their website to renew. They charged my credit card $75 for the renewal which actually costs only $26 if done by mail. What a scam! I quickly realized they were not the USCG and contacted them to reverse the charge which they refused. I'm taking up the charge with the credit card company but I thought others with documented vessels shold be aware of their scam. I just can't imagine a universe in which anyone would knowingly pay $75 for something they can easily obtain for $26.