Activation Name and Key not accepted

I copy pasted Name and Key but the massage says Your Licence key and name do not match

make sure they match the original licence key and name you gave us when you first purchase your cleaner product.

I had use it before but do not have any info

please help me to activate the product

There's an article in our help desk here: https://support.piriform.com/hc/en-us/articles/204043844 with some more information and advice on registration.

If none of that helps out, it's possible something isn't set up quite right with your license, so please contact our support team via the Contact Us form located here: https://support.piriform.com/hc/en-us/requests/new?ticket_form_id=86507 or by emailing support@ccleaner.com directly and we'll be happy to help out further with this.