Why doesn't my submissions # match the # of emails I've collected?

So in my forms, it says that I have about 600 submissions.  But when I click on "view submissions" and get my email list, there are only 199 people listed with their email address?

What is going on?  shouldn't those numbers be the same?

We apologize for the inconvenience, this issue happened due to a database maintenance, I have put your account to sync with our database, this will be solve within a few minutes, an hour max.

Please let know if you need anything else, we will be glad to assist you.