Active dot come is a legitimate company that operates a service for online sales for many industries.
You probably clicked something at one time to "agree" to be charged. This would be the campground company, not the Active dot com, who was the origin to be charging you, and is the reason Active reversed the charge so quickly.
The good news is that credit card purchases can be reversed. Debit card spending is much harder to reverse as it is your money gone, not theirs.
I never sign up for anything that has wording for reoccurring charges, I run away fast.
