My iPhone's problem

I bought my iPhone last September.  My last name is rare and many mobile phones I had had could not change my name in right Kanji, so the first thing I tried when I bought my iPhone was to put my name in Kanji on iPhone's dictionary.
But I could not. the button disappeared.

I read the manual, and serched on the internet, but I couldn't find the solution.
I knew I should go to the mobile shop, but I don't like going there.  It would take so long time.

But finally, I went to the shop yesterday!
It took so long time as I thought, and they could not solved the problem!
they said they had nothing to do with my iPhone, so I should try to 'restore' by iTunes.

So I'm trying to restore my iPhone now.  It is taking so long time again.

If I could not solve the problem, I should tell Apple.
I hope my iPhone become all right by restore.