cancel the service

Hello @20982306,
Look at the following link for information on how to cancel your subscription.
https://helpx.adobe.com/manage-account/using/cancel-subscription.html
If the information does not help, then you need to contact support as suggested bu @LinSims 
-Manan

Let me move this to the Account, Payment, & Plans forum for you, which is the appropriate forum.

This is a public forum, not Adobe support. Users, including the ACPs and MVPs, can't provide support for account, subscription, billing, download, or product activation issues. Support for those issues requires an Adobe employee.

If you cancel your subscription before the end of the subscription, you will be charged a cancellation fee of 1/2 the remaining subscription. If you are in the final month of the subscription, there is no fee. 

Adobe provides support through the Chat function on the contact page or through a phone call. There is no email support.

CHAT: Click the following to contact Adobe customer support staff for help:

https://helpx.adobe.com/contact/support.html

You must be signed in with your Adobe ID and allow cookies in your web browser for this to work. Disable any ad, pop-up, or script blockers.

This is the link to the US website. If you are not in the US, the site should redirect to the page appropriate to the region associated with your ID.

Click the chat icon at the bottom right of the page to open a chat session.



If that doesn't work, try this link, which opens a chat window directly:

https://helpx.adobe.com/contact.html?rghtup=autoOpen


PHONE: You can also search this page for a regionally appropriate phone number for customer support.

https://helpx.adobe.com/contact/phone.html