From articles I read on it, it sounds like the clerk said something more along the lines of, "Well, there's this other bag that is basically the same but for a better price! You should take a look at this one!"
And, honestly, for her to claim it's *racist*? If anything, even if it was exactly as Oprah had said, it was classist, not racist. Didn't the exact same scene happen in Pretty Woman, something that we quote all the time? We've had a zillion stories about it. Claiming that something that *does* happen to people plenty, happened to her *because she was black*, seems the height of looking for racism. And a bit suspicious, given that she's promoting a movie about racism. I think it's all hype. I'm inclined to believe the clerk, and I don't think any racism was intended. Besides, Zurich doesn't have the same history of racial tension that we do here.
I think Oprah may be backpedaling because people tracked down where the incident happened and what she tried to make a general "racist incident that happened to me once" became a specific accusation, and she realized that her accusations could really hurt an innocent woman's career.