Job Interview Error - What should I do?

I'm a Recruiter, and if this happened to an applicant that I was trying to place. I would call the company and explain to them what happened. I ume she is doing this since she advised you not to contact them again. I can understand why you feel so flustered. If the position you interviewed for required you to have good communication skills and writing skills, this would not be a good look. Lets just hope you sold them on your experience and personality during your interview and they are willing to look past this.