I screwed up trying to upgrade

Yesterday I upgraded to CCleaner Pro (non-business) and stupidly went back to the previous page to check something (don't remember what). When I went back to the upgrade page it was no longer valid (of course). My Visa card was charged but I can't figure out how to activate the CCleaner Pro account. One thing in my favor, I do have the license key. Can you help?

Mark

Please don't put licence key numbers etc on a public forum. It belongs to you only :)

To activate open CCleaner... click on Options, and then at the top where it says Upgrade to Pro click on that and enter your key.