On the side menu, click on Accumulator.
Under the Accumulator Status, click on "View details >" button of the subscription you would like to cancel.
Note: An Accumulator status that shows INACTIVE means that there is no ongoing subscription.
Click on the "Cancel Subscription" button.
Click on "Proceed".
Congratulations, you have successfully cancelled your subscription!
The Accumulator Status of that subscription will change from ACTIVE to INACTIVE.