Thanks for reaching out to the Adobe Stock community.
I see you have an Adobe account under the same ID as with forums. I have checked your account details and noticed that you had signed up for Adobe Stock 10 images per month(one-year) plan on 18 Sep 2018.
You may now self-cancel your Adobe Stock subscription, please follow the steps as mentioned in the help document: Cancel your Adobe Stock membership
Also, you can reach out to our support team Support FAQ: How can I contact Adobe for support? for the cancellation requests.
Note: I would suggest you to download all the assets prior to cancelling your subscription since you can use your available licenses as long as your subscription is active, but you forfeit any unused licenses upon cancellation of your subscription.
If you face any troubles, feel free to update this thread.