Woocommerce create order via rest api

Hi all,
I need to create order via rest api. It works successfully but I’d like to manage also shipping tax and coupon.

I don’t understand how set these information.

My Body request:

{
	"customer_id": 613,
	"billing": {
		"first_name": "demo",
		"last_name": "demo",
		"company": "",
		"address_1": "",
		"address_2": "",
		"city": "",
		"postcode": "",
		"country": "",
		"state": "",
		"email": "[email protected]",
		"phone": ""
	},
	"shipping": {
		"first_name": "Pippo",
		"last_name": "Paperino",
		"company": "",
		"address_1": "Via Pippo 88",
		"address_2": "",
		"city": "Roma",
		"postcode": "00100",
		"country": "",
		"state": "Italia"
	},
	"line_items": [
		{
			"product_id": 96108,
			"quantity": 3
		},
		{
			"product_id": 96119,
			"quantity": 1
		}
	],
	"shipping_lines": [{
		"method_title": "Tariffa unica",
		"method_id":"flat_rate"
	}],
	"coupon_lines": [
		{
			"id": 93651,
			"code": "7u4xdqmj"
		}
	],
	"payment_method": "payPal",
	"payment_method_title": "Paypal"
}

I added coupon_lines array and shipping_lines array but in my admin panel, in order detail, these information not displayed. If I compleate an order via website, it works very well

Thanks