Please immediately cancel my one-year subscription, which was auto-paid today.

Please cancel the one-year subscription paid today. I don't use it anymore, but I didn't know the subscription was going on. Please cancel my subscription and refund immediately. It's too harsh to pay for this for a year when I don't need it anymore. Subscription payment has been made automatically from today, but please cancel the payment amount. (I canceled my subscription on the webpage, but it says that it is possible from today (August 9, 2024) next year. I would like to cancel immediately.)