Once you create a recipient in the Plastiq system, you may edit the address, but not the country that the business is located in. We do this as to prevent mistakes and it's a very rare that a business relocates entirely from one country to another. This way, there's no way that a recipient you add can be paid in a currency that they don't accept.
The business did move from one country to another, what do I do now?
If you absolutely need to change the country of origin for a recipient then please delete your existing recipient and create a new one.