Google adwords denying us to be able to have the adwords on our site.

The site content is 100% clean.

Has anyone else had this problem?

You are right Mr. Snodigator. Google is many times wrong for someone.

I think you should re-request for this to google for Adwords.

You don't have Adwords on your site

You BUY Adwords to send visitors to your site

AdSense is what rejected you not AdWords. Without knowing more about your site there's not much advice anyone can offer though. You saying the site is clean doesn't make it clean. It also doesn't mean if meets any standard Google uses to allow you to use AdSense.

It's up to them whether or not to let you in, but usually you have to be doing something they don't like if they won't approve you.