Why won't the ringtone work on my Iphone 4?

I made a Barbie Girl ringtone, dragged it to the Tones file and everything. I changed it from 4ma to 4mr. I synced it all, I synced the ringtone, and synced it again. Then i called the phone and it's still Marimba. WHY.

Iphones are pretty tricky. You might not have a certain code embedded that the phone needs. I think your first problem is the song you used… My god that song is horrible. (;

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