Order delivery_address null fields

[remear]

Order delivery_address fields are always null.

curl https://api.balancedpayments.com/customers \
     -H "Accept: application/vnd.api+json;revision=1.1" \
     -u ak-test-2BCjYRbHBrAzdEhef6ZqWkAjHW47E2q3X: \
     -d "name=Henry Ford" \
     -d "dob_year=1963" \
     -d "dob_month=7" \
     -d "address[postal_code]=48120"

curl https://api.balancedpayments.com/customers/CU5vaPZ2FtHS8EsMjoi1ozBP/orders \
     -H "Accept: application/vnd.api+json;revision=1.1" \
     -u ak-test-2BCjYRbHBrAzdEhef6ZqWkAjHW47E2q3X: \
     -d "description=Order #12341234" \
     -d "delivery_address[line1]=1234 PL SE" \
     -d "delivery_address[city]=Seattle" \
     -d "delivery_address[postal_code]=98402"

Response:

{
  "orders": [
    {
      "delivery_address": {
        "city": null,
        "line2": null,
        "line1": null,
        "state": null,
        "postal_code": null,
        "country_code": null
      },
      "description": "Order #12341234",
      "links": {
        "merchant": "CU5vaPZ2FtHS8EsMjoi1ozBP"
      },
      "href": "/orders/OR5Qbq16xjGHAN00I6Meffxz",
      "created_at": "2014-05-28T00:48:14.079771Z",
      "updated_at": "2014-05-28T00:48:14.079773Z",
      "id": "OR5Qbq16xjGHAN00I6Meffxz",
      "currency": "USD",
      "amount": 0,
      "meta": {},
      "amount_escrowed": 0
    }
  ],
  "links": {
    "orders.merchant": "/customers/{orders.merchant}",
    "orders.credits": "/orders/{orders.id}/credits",
    "orders.reversals": "/orders/{orders.id}/reversals",
    "orders.refunds": "/orders/{orders.id}/refunds",
    "orders.debits": "/orders/{orders.id}/debits",
    "orders.buyers": "/orders/{orders.id}/buyers"
  }
}