Q: cannot make a purchased for games

If you haven't already done so then you can contact iTunes support via this page and ask them why the message is appearing (these are user-to-user forums, we won't know why) : http://www.apple.com/support/itunes/contact/ - click on Contact iTunes Store Support on the right-hand side of the page

If you are getting a message to contact iTunes support then yes, you will need to contact them - they are the only people who will know why the message is appearing

i did several times no changes

Have iTunes Support replied saying that it should be fixed ?

they told me that it will fix but unfortuanatlly not yet.

You've tried logging out and back into the account on the device that you are trying to purchase from ?

Yes İ tried it. i tired of sheet this iphone. İ thnik i should changme my company