S100nbus

I like CCleaner and have found it useful in my work and home systems. I got a renewal message renewed and downloaded the latest version. Ran CCleaner was told there was an update to my renewed software and was asked to spend more money to get the renewal. Question. I downloaded what I thought was the newest version of the software and paid for it gladly. So why when I click on "check version " am I told an updated version is avaiable and am now dinged again for more ? Thanks, Jacob