The rejection instructions are not sufficient.  It says SC returns with a foreign address neet an ISO code, which I located and informs to put this code in the mailing address "Province" .... but this input field doesn't exist.  

I have retried 2 times. There is not a "Province" input for Foreign Address.  There is "Region" but by placing the info there, it doesn't work.

At the bottom of client information there is an input box for "South Carolina Country Code Number" ... but that should be 88 = Outside USA.

I have tried a search of "province" but nothing is applicable.