Birthday Invitation In Sri Lanka Birthday Invitation?

Birthday Invitation? - birthday invitation in sri lanka

The best friend of my son's mother has a birthday party for my son of 4 an invitation to his son, and it seems that the name of my son in the envelope and on the invitation. But my son is only 4 years. For example, only wrote "Ethan J." instead of "Ethan J. and family.

How can I check and not send an e-mail or my husband and I are invited? Of course I know that parents are invited, but we want them to be safe. We communicate by e-mail is sometimes why I said, e-mail and no telephone.