my account has problem

What about your account isn't working? More information would help. Locked or disabled?

If this is in the iTunes/App Store, see the 3rd link.

Apple ID is locked or disabled

If you have changed your ID or password, have you followed the steps in this article?

What to do after you change your Apple ID or password - Apple Support     

 Apple ID disabled - Your account has been disabled in the App Store and iTunes

If necessary, contact iTunes Support. Either use the form or scroll to the bottom of the page in the 2nd link. Follow through the screens to get a chat or telephone option.  You may need to pick a problem that is slightly different than yours to get a chat option.  

iTunes Support

iTunes Support – world wide

Contact iTunes Support. Either use the form or scroll to the bottom of the page in the 2nd link. Follow through the screens to get a chat or telephone option.  You may need to pick a problem that is slightly different than yours to get a chat option.  

iTunes Support

iTunes Support – world wide