vitamin shoppe Written Refund Policy is not honored by this location naples, Florida

I purchased a product from this store which I was not satisfied. Their store policy claims the following--

Rely on the Vitamin Shoppe 100% Satisfaction Guarantee 

 You may return any item purchased from The Vitamin Shoppe for any reason within thirty (30) days of purchase. For online and catalog orders, the product ship date is the date of purchase. You will receive a full refund for unopened items in the original form of payment and merchandise credit for opened items.

So I returned the item within 10 days. It was a 7 day product guaranteed to work. Even the bottle claims "Complete Satisfaction or Your Money Back Guarantee"
Apparently this store manager has poor reading comprehension skills. Probably didn't finish high school. 

I have been a customer with Vitamin Shoppe for over 10 years and sent many friends to them. Depending on how corporate responds to this matter will determine my next step. 
In the meanwhile-

Buyer Beware. I have been consuming these kind of products for a very long time. Most sales outlets are not very honest nor do they operate with morals. These products are not FDA approved or regulated. So the only protection you have is the support of the company you are purchasing these items from. When that company fails to deliver on a "contract" it is a clear indication of "greed," "dishonesty," and "no morals." 

This manager thinks it's OK to cheat a customer and steal their money through deception. 
Even though it's only $13, I am prepared to file a civil action against the store and the store manager for failure to honor a written agreement. I assure you it will be in excess of $13.