how to change my apple community username?

Only the hosts can do that. I have reported your request to the hosts. If they are willing to make a change, they will contact you using email.

I have reported your request to the hosts. If they are willing to make a change, they will contact you using email.

why have the Hosts chosen my Apple community name without consulting me? I live in a small community and can be identified from the name the so-called host has given me. This deters me from using the Apple community.