Sorry, but this is a user to user forum, and we can not access your personal data, only the official Apple Support can do that.
But, you can cancel the subscription yourself:
View, change, or cancel your subscriptions - Apple Support
However, you will have to pay for the subscription first before you can request a refund from Apple, if you mistakenly made the subscription. Follow the steps mentioned in this article to do so:
Request a refund for apps or content that you bought from Apple - Apple Support