States do not issue postage stamps. The U.S. Postal Service is an agency that operates in the service of the national government, just like the currency (money).
If it's a postal money order, take it back to the post office. If it's some other kind of money order, look for a customer service number of the company that issued it. If there isn't one, ask at the place you bought it.
A money order has certain information that needs to be filled out. The money order has a square shape like a check, but there are areas that require filling out, such as signature of the person sending the money order called a purchaser, the name of the person or company that it is being sent to or payee, and the address of the person sending it. The amount of the money order will also be on it.
They are 5 or 9 digits just like anywhere else!
regular money
use Google, and look up- Vanuatu Money
it short of looks like Japan money
Well, how do those €'s look like?
There are thousands of post codes in the UK but an example would look like this; SW12 3AB.
The postal service of most countries that have some form of postal code has a postal code finder on their website. For example, you could look up the ZIP code for any US address on the USPS website.
like poo!
Egypt is a country and does not have a "zip code." In fact Egypt does not employ a postal code system at all - the postal system relies entirely on street addresses.