At the moment, the "default" country code for the phone number field is set to the location of the sub-account.
So if my sub-account location is based in France, it will show France as the default phone number country picker.
This sucks since all of my buyers from my ads are based in the US. So they have to manually switch the country picker from France to USA to put their phone number.
If you can't make the country picker for phone number dynamic based on the Client browser location, at least allow us to SELECT the default country picker.