Desactivar la renovación automática de CCleaner

Como podría desactivar la renovación automática de mi CCleaner Professional

Send a request using the form here: https://support.ccleaner.com/s/contact-form?language=en_US&form=general

en español: https://support.ccleaner.com/s/contact-form?language=es&form=general

Please note that, except for an automatic acknowledgement, it is currently taking a long time (days or even weeks) for support to reply to requests, please have patience.