I want to stop my premiere pro Plan.

See here for instructions to cancel creative cloud for teams: https://helpx.adobe.com/enterprise/using/cancel-teams-subscription.html

To contact customer service, use the console that is specific to reams subscriptions.

Hi there, 

We see you have an active Team subscription under the email address you are using with this community. 

Moving your thread to the correct community. 

For self cancel: How to cancel your Adobe plan or membership 

If you can't self-cancel: Adobe customer care can be contacted by beginning a secure chat session at https://helpx.adobe.com/contact.html?rghtup=autoOpen. If the chat window fails to open, or is non-responsive, use a different device to start the interaction.

(see also here: https://community.adobe.com/t5/creative-cloud-services/how-to-contact-adobe-support/td-p/11875703 or here
https://community.adobe.com/t5/account-payment-plan/how-to-contact-adobe-support/td-p/11843852)

Moving thread to the Account, Payment, & Plan forum from Using the Community