How can I get a call from the agency when I am overseas?

I live in South Korea.  The website does not accept my phone number. But the next step when hiring an expert to do my taxes is to have a phone call.  But they can't call me.  Catch 22.  How do I get past this?

Troubleshooting

Unfortunately, our Assist & Review and Full Service product are not able to prepare Non-resident or expatriate returns. You can still use our do-it-yourself products to prepare your return.