How I restore the complete reciept for this app.?

Hi All,

We have two items, both are non-consumable. And to avoid this to be restored in other app account.

Upon purchased we grab the receipt from appStoreReceiptURL and send it our server for validation and saving the "original_transaction_id" for refference, that this item belongs to this user.

But, upon restoring purchased the receipt only retrieve the latest item purchase.
How can I restore the complete reciept for this app.?
First time restoring.

{
  "receipt": {
    "receipt_type": "ProductionSandbox",
    "adam_id": 0,
    "app_item_id": 0,
    "bundle_id": "com.sample.app",
    "application_version": "1.1.2",
    "download_id": 0,
    "version_external_identifier": 0,
    "receipt_creation_date": "2019-02-18 06:00:50 Etc/GMT",
    "receipt_creation_date_ms": "1550469650000",
    "receipt_creation_date_pst": "2019-02-17 22:00:50 America/Los_Angeles",
    "request_date": "2019-02-19 07:46:15 Etc/GMT",
    "request_date_ms": "1550562375625",
    "request_date_pst": "2019-02-18 23:46:15 America/Los_Angeles",
    "original_purchase_date": "2013-08-01 07:00:00 Etc/GMT",
    "original_purchase_date_ms": "1375340400000",
    "original_purchase_date_pst": "2013-08-01 00:00:00 America/Los_Angeles",
    "original_application_version": "1.0",
    "in_app": [
      {
        "quantity": "1",
        "product_id": "com.sample.klpremium",
        "transaction_id": "1000000502662721",
        "original_transaction_id": "1000000502662721",
        "purchase_date": "2019-02-15 07:25:41 Etc/GMT",
        "purchase_date_ms": "1550215541000",
        "purchase_date_pst": "2019-02-14 23:25:41 America/Los_Angeles",
        "original_purchase_date": "2019-02-15 07:25:41 Etc/GMT",
        "original_purchase_date_ms": "1550215541000",
        "original_purchase_date_pst": "2019-02-14 23:25:41 America/Los_Angeles",
        "is_trial_period": "false"
      }
      {
        "quantity": "1",
        "product_id": "com.sample.book",
        "transaction_id": "1000000503177274",
        "original_transaction_id": "1000000503177274",
        "purchase_date": "2019-02-18 03:22:58 Etc/GMT",
        "purchase_date_ms": "1550460178000",
        "purchase_date_pst": "2019-02-17 19:22:58 America/Los_Angeles",
        "original_purchase_date": "2019-02-18 03:22:58 Etc/GMT",
        "original_purchase_date_ms": "1550460178000",
        "original_purchase_date_pst": "2019-02-17 19:22:58 America/Los_Angeles",
        "is_trial_period": "false"
      },
    ]
  },
  "status": 0,
  "environment": "Sandbox"
}

Second time restoring "Only adds the book"

{
  "receipt": {
    "receipt_type": "ProductionSandbox",
    "adam_id": 0,
    "app_item_id": 0,
    "bundle_id": "com.sample.app",
    "application_version": "1.1.2",
    "download_id": 0,
    "version_external_identifier": 0,
    "receipt_creation_date": "2019-02-18 06:00:50 Etc/GMT",
    "receipt_creation_date_ms": "1550469650000",
    "receipt_creation_date_pst": "2019-02-17 22:00:50 America/Los_Angeles",
    "request_date": "2019-02-19 07:46:15 Etc/GMT",
    "request_date_ms": "1550562375625",
    "request_date_pst": "2019-02-18 23:46:15 America/Los_Angeles",
    "original_purchase_date": "2013-08-01 07:00:00 Etc/GMT",
    "original_purchase_date_ms": "1375340400000",
    "original_purchase_date_pst": "2013-08-01 00:00:00 America/Los_Angeles",
    "original_application_version": "1.0",
    "in_app": [
      {
        "quantity": "1",
        "product_id": "com.sample.book",
        "transaction_id": "1000000503177274",
        "original_transaction_id": "1000000503177274",
        "purchase_date": "2019-02-18 03:22:58 Etc/GMT",
        "purchase_date_ms": "1550460178000",
        "purchase_date_pst": "2019-02-17 19:22:58 America/Los_Angeles",
        "original_purchase_date": "2019-02-18 03:22:58 Etc/GMT",
        "original_purchase_date_ms": "1550460178000",
        "original_purchase_date_pst": "2019-02-17 19:22:58 America/Los_Angeles",
        "is_trial_period": "false"
      },
    ]
  },
  "status": 0,
  "environment": "Sandbox"
}