CCleaner Professional - License Deactivated

I purchased a Pro license years ago when sold as 'never expires' this was a good deal and supported the developer. this has now been deactivated and I am prompted to make another purchase.

The license has never been shared or used in any way to invalidate it.

I used the contact form and didnt get a reply, sent an email and didnt get a reply, so thought I would post here.