To cancel your subscription made from the web you must go to the “My account” section and click on the “unsubscribe” button. If you have subscribed via bank card the cancellation will be immediate, if you have made the payment via Paypal you must unsubscribe through your Paypal account. If you don't know how to unsubscribe with Paypal, don't worry, follow these steps: https://www.paypal.com/selfhelp/article/FAQ1768/3
If you've created your subscription from your Android device, check out this link: https://support.google.com/googleplay/answer/7018481
If you have created your subscription from your Apple device, check this link: https://support.apple.com/es-es/HT202039
