Plague on both their houses: PSO for the post that unnecessarily insinuates some kind of deliberate wrongdoing by OP and then being dragged into a public slanging match, and OP for being such a baby.

PSO: you'd be better off not responding to such trivia, and although the customer is NOT always right, being polite costs nothing.
OP: learn to read and/or type. Going on and on about this dstroys your credibility, even if you may have had a point about MIKEJ's non-curteous response.