Help!!Toefl ibt registration

alice189

i registrate the test in the internet,so i need sign up first.but if i fill "Canada" in the "Country/Location" of the "contact information",
" U* Z6 |  j5 athen i can't put "canada"in the"Primary"of the "contact perferences"
9 l- T$ C- G% P, A( r& ^% ^What should i do?Help!!!