Issue with cancelled subscription on App Store

Here is a one-stop link for billing questions→Subscriptions and Billing - Official Apple Support. You can review your purchase history to see what you were charged for, cancel subscriptions, request refunds and update your payment method.

To get a refund you must ask for one.

If you want to continue using the app store you will have to let it withdraw money, then request a refund→Request a refund for apps or content that you bought from Apple - Apple Support