Do we all have problems getting bras fitted?

Claire got me thinking. Last March I had a quick but thorough fitting by a brash young department head. She put my little boobs into a full coverage bra (that was a first) in my usual cup size, and sized down the band. I pointed out the empty cups, and she assured me that that was the best fit I could get.

Intimidated, I bought two. They are ok, but only just.

My new lingerie department SA was livid when she fitted me last month ("You didn't by these here, did you?" "No, I bought them at the downtown store."). She wants me to return them because of the bad fit.

Can I actually do that? I know the store's return policy is liberal, but that liberal?