Being politically correct is one of those odd things. It should be something that just comes naturally from the way we are brought up.
I am not inherently racist, for example. I will, obviously, make some judgement about a person I am talking to (face to face, on phone, on email, on irc, etc), as we all do. I don't base that on their race, and indeed, in many cases I do not know their race (though names are a subtle clue). If I find someone is dishonest, or thick, or some other trait, I am not going to automatically assume all people from the same place, or who look or speak the same, are the same as they are. So, not a racist, honest.
However, I found myself today suggesting that perhaps there is a language barrier somehow when dealing with a particular intransigent billing department. Somehow, suggesting a language barrier, even with the racist connotations, seemed more polite than suggesting that the person was a total fucking idiot, which is how I was starting to feel. I am not saying they are! I don't know if they just don't understand (because of language or cultural issues) or if they are totally thick or if it is some sort of corporate policy to argue disputes forever. The latter would be odd, as the contract allows us to withhold payment of disputes, so they can't win by prolonging the dispute like this.
There really are only so many times you can explain that the items being billed for were not something we ordered or requested, and as such they are not valid!
We have explained "provide evidence that we ordered it, or agree the dispute and issue a credit" so many times now. They still say "charges are valid". This is even after a meeting with a new account manager - he is trying to sort the issues and is keen, but still we have this crap...
But really, I am not sure what we do next. Arrrrg!
Update: Someone else there is being actually quite sane with his replies - we'll see what happens.