The issue with "That is" is you are referring to oneself within the third individual. Fine for introductions of some other person, but not on your own. Say "I'm Joe Doe" or "You have got arrived at Joe Doe" or maybe just "Joe Doe". We have been over complicating something https://petskyonline-onlinestrore.blogspot.com/2025/07/discovering-petskyonline-premier-online.html