I took a money order for a sale on the exchange. I take it to my bank and they won't cash it, they tell me to take it to the post office. I take it to the post office and they won't cash it, they tell me to take it to my bank. So if nobody will cash them then are they worthless? I don't think it is right that the post office will sell them if they won't cash them, maybe it's even criminal.