I recently tried to cash a USPS MO for a item I sold on this web sight for $138.60 but after paying $13.60 for shipping and $19.60 for 2 books of stamps they only had to come up with $105.40 !
Well after going to 3 local USPS offices between 11:00 and 11:45 am none had enough money to cash there MO that would come to $105.40 . after going back to the largest USPS at 3:00 pm the same day they were able to cash there MO !
I was told that they all only start with $40.00 to $50.00 in the drawer each day! they all said call or check back later they( might) have the money.
IMO if you are going to sell & cash MO you should have the $ on hand to cash them at any time ! not be put on a merry go round to cash them.