Can you send cash via Apple Pay to other countries? Specifically send cash between USA and Uk?

Set up Apple Pay - Apple Support - "To send and receive money with Apple Pay or use Apple Pay Cash, you need your iPhone, iPad, or Apple Watch. These features are available only in the United States."

https://support.apple.com/HT204506

Set up Apple Pay Cash and person to person payments - "To send and receive money with Apple Pay, you must be at least 18 years old and you must live in the United States." USA version but probably other countries read the same, only allowing money to be sent and received inside that country.

https://support.apple.com/en-us/HT207886

So it seems you did not get it to work, which isn't surprising since the links i provided essentially said it wouldn't. You can't make transfers internationally. A person can set up an account while in the US and then try to use it while in another country, but it an only be used to make purchases in the USA.

This is actually a no-brainer if you think about it. Wouldn't being able to transfer money internationally be a great way for crime syndicates to launder money and hide international transfers?

Using Apple Pay can you transfer funds to an individual internationally?

https://discussions.apple.com/thread/8284438