[Urgent] Blogger Help

I've begun importing and exporting my blogs, and now when I try to import one of my blogs it says "Sorry, but you have exceeded the maximum number of imports. Please try again later." Has anyone seen this message while importing a blog on Blogger before? Please and let me know what's happening if you have experienced this before.

No, I never saw something like this and I was importing/exporting a lots of posts.
How many posts do you have???
(I think there could be 100 posts limit - per day?? - but I am not sure. )

I think it might be 100 posts limit daily.
Can you somehow import in batches?

I've imported 240 posts from one blog in a day so I do not think its that. I've seen other people have this problem too and I'm wondering how long it will stay like this?