...

'billing_address' => {
     'province' => 'New Brunswick',
     'city' => 'Moncton',
     'company_nam' => '',                   # Should be company_name
     'phone' => '5065551212',
     'address_' => '',                      # Should be address_2
     'country_code' => 'CA',
     'first_name' => 'Joe',
     'address_1' => '123 Somestreet',
     'email' => 'someone@somewhere.com',
     'country' => 'Canada',
     'postal_code' => 'E4E 4E4',
     'last_name' => 'Blow',
      'province_code' => 'NB'
     },
     'fee_line' => '',                      # should be fee_lines
     'shipping_tax' => '0.00',
...