Avdata sucks data from submitted flight plans as well. If you submit a plan that includes a place that charges, you’ll get a charge even if you end up not going anywhere near the place.
However, Avdata has always reversed these charges, on request, if I explain that things did not go in accordance with the plan.
Avdata has also always reversed the errors. Avdata understands I can’t be at place X on the East coast one day and place Y on the West coast in a bugsmasher.