As with many others I see that Adobe has been taking £23.99 from me every month for a service I believed was only a 10 photo trial and had been cancelled and has never been used since. And when I try and go to the cancellation page it will not load (convenient?).
I'm disappointed in Adobe and would like a refund, it is ridiculous how they will quietly keep taking money from an account you can see hasn't been accessed! I cannot go into the chat as I can't load it on my phone. You shouldn't be taking money from dormant accounts, such practices are unlikely to make customers fond of the brand...!
I apologize for the troubles you have faced.
I believe you are referring to the promo offer for 10 free images. Please see the terms for the same here: Adobe Stock 30-day trial - Get 10 Stock images free. | Adobe Stock
Please Contact Customer Care for the cancellation and refund requests.
You may refer to Contact Support FAQ: Unable to reach support through the "Contact US" link in case you are unable to reach support.