Does your name work in a UILabel on an app? It's hard to believe they do something different than that.

If not, try to find acceptable characters to use instead.

This is more likely an iOS SDK bug than an AppStore one -- see if you can reproduce it in an app and open a Radar. I would not expect the AppStore support to care or really be able to help.

[EDIT: quick test in latest Xcode beta -- looks fine]

Another edit: look at this app

https://itunes.apple.com/app/id940870961

Are you using literally the same character in your name?