Why is my ringtones purchased from iTunes not showing up?

Вот перевод на английский:

"I entered to the 'Sounds' section in the settings and wanted to change my phone's ringtone. I went into the store section and bought a ringtone. After that, a button appeared saying 'Upload all purchased ringtones,' and I clicked it. However, my ringtone still didn’t appear in the main list."

[Re-Titled by Moderator]