Is there a US Domestic phone number to reach customer service?

CCleaner for Windows CCleaner Windows Suggestions
1

I have a need to speak to customer service. It should be a domestic US number. I require a voice connection. So far I haven't been able to establish one.

If I can't get a number for US customer service I will cancel and get a refund.

2

All I can help you with is this page.

https://www.ccleaner.com/about/offices