Too bad you agreed to this when you bought it and accepted the terms
"30 DAYS UNLIMITED GAME PLAY INCLUDED WITH PURCHASE. VALID PAYMENT METHOD OR PAID GAME TIME CARD FOR SUBSCRIPTION AND PERSISTENT INTERNET CONNECTION REQUIRED.
Acceptance of End User License Agreement, Terms of Service, and Privacy Policy, and account registration using enclosed one-time use activation code, required to play. Must be 13+ to register. The 30 days of unlimited game play begins when you select your preferred subscription plan on store.elderscrollsonline.com. Subscription fees only charged for game access after the first 30 days, subject to cancellation by you at any time. No refunds or credits for partial months. If you choose to pay for your subscription with a prepaid non-recurring payment method or with a Game Time Card you will be charged at the time you select the subscription plan. See store.elderscrollsonline.com for details. Product requires installation of application software. The Elder Scrolls® Online service may be discontinued, and content modified, disabled, suspended or removed, at any time. See Terms of Service and Privacy Policy."
already payed. maybe i dont want to play next month
In Germany there is something called AdvoCard.
You pay a little fee every year and if you want to sue someone they do it for free!
I bet every country has something similar to this