Chinabloo

I lost my job about a year ago. I could not take a hardship withdrawal because I was no longer with the company I was unable to pay large recent medical bills or rent due to the job loss so I cashed out my 401k (around $20k) to take care of those things The tax paperwork from my plan does not indicate a hardship withdrawal so I'm getting killed on taxes. Is there a way to show on my taxes that it was a hardship or can my plan provide corrected docs?