If you purchase the 750 images per month plan, do any images roll over? What happens if you return back to the 10 images plan the following month -- would any images roll over then?
From the FAQ:
What happens if I don’t use all my monthly licenses in a given month?
With a small subscription plan, which includes 10 images a month, unused downloads carry over to the next month as long as your subscription is active. The carryover limit is 120 downloads. With large subscriptions, which include 750 downloads per month, unused downloads do not roll over.