Dance Reviews and VIP Membership

First I'd like to say "hello" to everyone. I'm new here, and I've been lurking around and reading reviews, discussions, articles, and blogs, but this is my first post. My SC hobby is something I recently started, and thanks to this site, I have had some really good times over the last couple of months.

To this point I have only written a couple of reviews, but I have more clubs that I have visited and would like to give my opinion of those as well. My question then is do you get a four week "free" VIP membership for each review published, or do you just get four weeks from the day that your last one was published?
I'm trying to figure out if I should spread out my reviews or if I should just write them all at one time.

Thanks.