There are three ways, and none needs a phone call:
In your account. Sign in, open Subscription (/applicant/subscription) — it is also on your dashboard — press Cancel subscription, then Yes, cancel my subscription. A reason is optional.
Without signing in. Go to /help/cancel-subscription and enter the e-mail you subscribed with. We send a one-click cancel link to the address on your subscription. It works once, for 72 hours, and needs no password. Opening the link changes nothing until you press the button.
With a change request. Choose "Cancel my subscription" at /help/change-request. When your receipt number and e-mail match, it is cancelled straight away; otherwise we e-mail you the one-click link.
Whichever way you cancel, we e-mail you a confirmation.
Send a change request: billing mistakes our records prove are refunded automatically, and a person answers the rest within two business days.