Gourmet Cooking Unauthorized credit card monthly charges Vista California

I purchased a coloring book in April (offer was from a quilting website that I visit often). I did receive the coloring book. Some months later I noticed a charge that I didn't recognize on my credit card.  When I called I was informed that it was for a monthly subscription fee to gourmet cooking websites. They offered to refund the latest charge, and cancel my subscription.

I went back to the original offer, read the entire offer and the terms and conditions and nowhere does it state that there was a monthly subscription involved or that I would be charged a monthly fee.

I am requesting a full refund of all charges.  We'll see......