Apple manages the subscriptions. I have no information regarding your personal subscription information ( to be more clear, I know nothing about any user other than what you may tell me in an email or in person).
Here is the link to Apple's instructions on how to cancel a subscriptions.
Understands the word 'Cancel' means your subscription will not renew but will continue until its expire date. Below is a screenshot from a canceled subscription. As I write this the date is Oct 26, 2020. In one example below the subscription is canceled but the apps subscription will run until Nov 11, 2020. In the other example the it runs until Nov 19.
If you are unsure about the status of your subscription, ask Apple, I cannot speak to the status of your subscription. Apple does have a link for such inquiries. Here is that link