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Empty my storageAsked by ThatDay on February 21, 2015 at 09:24 PM
You will have to access your form submissions page and delete submissions with file upload in it.
Please make sure to keep a backup of your form submissions. Otherwise, there's no way you can retrieve it anymore.
Furthermore, I saw that you have upgraded your account which gives you a 10GB of File Storage. You should be all set now. You're too far on reaching your account limits.