You can cash them at any post office or your bank. Or you can take them to a check cashing place and they will cash it, but they will charge you 5% to do it.
Since cash is probably used to purchase the money order those monies have been given to the place that prints out the money order. However in many cases the person can get a replacement money order....
No. A Postal Money Order is not a negotiable instrument. It is a fixed value instrument and its value does not change. Let us say you take a Postal money order worth USD 100 and give it to me,...