Quote Originally Posted by DrByte View Post
I don't have a Braintree account let alone a site set up with the module.

But, it would be helpful to know exactly how to recreate your exact situation on a new store:
- how to create the zone configuration affecting these transactions
- an actual billing address that would trigger the problem

Perhaps there's a combination in there that will expose a solution. Often zone-mismatches are a result of unexpected assumptions.
"how to create the zone configuration affecting these transactions" My zones were already set up in my zen cart in Admin/Location/Taxes/ZoneDefinitions and worked OK for some years.
In Braintree you see a drop down list of these zone definitions and simply click the one you want to use.

I went into my database and the "billing country" is shown correctly for these cases.