Adobe!
Whenever you sign up for something that requires your credit card info, don’t sign up. You’re entitled to a month or two of their free services, but they’re not going to let you know when the free offer expires. And they’re banking on the fact that you’re not going to check your credit card info every month.
Even large companies like Adobe aren’t above such shady practices, though to be fair, you really should know what you’re signing up for. Adobe stock videos and images aren’t worth it, and if you’re charged $30 every month for this useless service, you totes deserve it.