Message saying I am almost out of space

I get a message saying I am almost out of space. I deleted all of the submissions but i still get the same maessage and it says i am 113 out of 100 used 

Hi,

Sorry but deleting submissions will not lower your form submissions usage. It will remain as it is. Submissions counter will only reset every first day of the following month. Example next reset will be on May 01, 2014. However, you can upgrade your account to any of our paid plans anytime you wish for a higher limits and to avoid interruption of the service.

Thanks!