How to remove AU accounts?

[Scene]

I have like 5 AU accounts from my parents (in highschool they AU'd me on several of their cards) and I would like to remove most of them. Do I call the issuer or the credit bureaus?

[Open123]

I think they would have to make the call.  

[Guava]

Have your parent(s) call the card companies and request AU to be removed