Looking for old chats on my iPhone

There are no other posts listed under your name/subscriptions:

https://discussions.apple.com/profile/Ericalopez484/subscriptions

Maybe you had a chat with Apple support - but that would not show here since we are not Apple, just other users.

These are not chat rooms so it would not be here. Do you mean chat with an Apple support person?

Your history here shows only this post. We are not Apple and have no access to Apple support conversations.

Old chats of what? And where? These are technical forums here.

These are user to user forums, not Apple support, so there is no record here of any of your interactions with Apple support.