Hyphenated URL Troubles

[ben@do1]

Hi all. This is my first post so I would just like to introduce myself. I am Ben and I work for a digital agency called do1.

I just wanted to ask about as I am experiencing some problems with a couple of google tools.

Firstly; sitemaps. I have uploaded a valid sitemap to google several times, yet it kept coming back to me that some of the urls i included were invalid, although this is not the case. I couldnt work out as to why google were telling me this until today when an adword campaign i launched for our own website was denied because of an invalid URL.

Again, I couldnt work out as to why this was happening as I double checked the url over and it works fine when typing or copy/pasting into the address bar.

So im just wondering if there is some kind of problem with hyphenated urls? As another thing that leads me to believe this is google is not indexing any of our pages with hyphenated urls only the ones without i.e blog posts etc.

All these factors leads me to believe there is something definately wrong?

an example can be: Register a Domain, Find Hosting and Create a Website at Domain.com

Thanks,