Defenses: How to Prove that the Plaintiff Sued the Wrong Person

My question involves small claims court in the state of: Indiana.

I was served a Notice of Alias Claim, the form has my work address and phone number. The sheriff said to call the court if I have any questions, the court said to call the plaintiff's lawyer and provided them with soc to prove they have the wrong person. When I spoke to they lawyer and told her they have the wrong person, she kept putting me on hold and asking for my soc. (I only gave last 4). She said I still have to appear in court because the soc is so close. What information should I bring with me to prove that I'm me and that they got the wrong person? Also should I be prepared to defend myself? It's a Jewelry Store, how would I defend myself?

Thank you in advance

Defenses: How to Prove that the Plaintiff Sued the Wrong Person