how to unsubscribe?

@frenzzzy0 

if you subscribe via swtor.com then its per https://help.ea.com/en/help/star-wars/star-wars-the-old-republic/swtor-subscription-faq/

Cancel your subscription

If you wish to cancel your subscription to Star Wars: The Old Republic:

1. Start by logging into your account on swtor.com.
2. Click on Subscriptions in the Account Management sidebar to the right of the screen.
3. Scroll down to the bottom of the page and click on Cancel your subscription.
   Follow the prompts to complete your subscription cancellation.

Note the link mentioned above only exists if a subscription exists, if no subscription exists the link is simply not there 

If you have subscribed via steam then you need to cancel the swtor subscription in your steam account  per https://help.steampowered.com/en/faqs/view/726E-E811-168F-0D9E#:~:text=to%20your%20cart.-,How%20do%20I%20manage%20or%20cancel%20my%20Subscription%3F,until%20the%20paid%20plan%20expires.

There is no Cancel your subscription button as of 28 Dec 2023 on the Subscriptions page. 

@Wolfedi 

the cancel link only exists when a subscription exists, if you purchase via steam however then it needs to be cancelled in the steam account