The plugin itself suggests the $150. It appeared to me that paying that was the only way to get support.
Not here is it doesn't. The plugin here is supported by the community in the support forums for free.
http://wordpress.org/support/plugin/w3-total-cache
You can get commercial support at the author's site.
http://www.w3-edge.com/wp-plugins/w3-total-cache/
But as I wrote in your other topic commercial products are not for these forums.
http://codex.wordpress.org/Forum_Welcome#Commercial_Products
You can seek support in these forums if you choose to but it's 100% for free.
You may close my thread
I closed that thread because it was being used to contact people off the site and that topic was heading into offering to pay. It's a thing that can be abused and no one wants this forum to become a place where people fish for work.
If you want to use the free non-commercial support in these forum then please explain what you've tried and what broke when you did. I do not know if the author will chime in but someone else may be able to assist you.