Just signed up for CCleaner Pro and cannot find Manage Subscription in order to disable Auto Extension as per your published instructions.
Thanks
Mmm, yours is the second report of that in a couple of days that the button has gone mising, I'll flag it up to be investigated.
In the meantime you can do it the old fashioned way, email: support@ccleaner.com and ask them to turn your auto renewal off.
Use the email from which you purchased CCleaner so that they can identify your account.