I get an alert that says I'm out of Submission Storage

Hi, there is an alert, that I am "out of submission storage" but I have already deleted alot of stored submission weeks ago, so that there should be no more than 200 stored submissions. Is there a mistake? Can you please clarify? Thanks

I have recalculated your Total Submissions Storage, it reduced to 427. This is still close to the limit so if you need more, you may consider downloading your form submissions and delete them from your form. You can also upgrade your account to the Storage plan to remove the limit.