There's no such thing as common sense - But this makes no sense at all!

I was in the office not too long ago when I was approached by someone questioning why I wasn’t responding to her email requests. My response was that I had not seen any emails. I was informed that I was sent several email messages that I was obviously ignoring. To which, I replied that I had not received any emails. This person and I debated about the emails for a very long time. At one point, I showed this person my inbox. The immediate response was that I must have deleted the messages. I showed this person my deleted folder. Again the argument was, I must have deleted the messages. I was asked to step into this person’s office because she had kept record of all  the messages that were sent. She opened up her email an pointed out several emails and said something to the effect of “there they are, I told you I sent them to you”. So I took a good close look and immediately knew the problem. I looked at this person and responded, “You sent them to the wrong person, you misspelled my name”. Now normally, I think most people would expect some sort of apology or at least an acknowledgement that a mistake had been made. Not in this case. The person I was talking to immediately responded that the problem was that, I SPELL MY NAME WRONG!!!! Can you imagine? The argument is, I can’t spell my own name. I was flabbergasted. How do you respond to that?