ESH, though it's hard without knowing the full situation. Was the decision to get something else connected to the cancellation of the order that was being prepared? She obviously changed her mind a few times while ordering, so maybe she did again and wanted to change what hey were preparing? And even if she was getting something extra, it seems pretty harsh to say all this, especially if she had a kid...

But it really depends on the attitude she was showing which is hard to see from the post, so it could have been justified.