https://ado.dunelm.com/v2/pdp

{"clickAndCollect":true,"skus":[{"sku":"30601089","quantity":1,"price":45,"clickAndCollectEligible":false}],"includeDrivingDistance":false,"noDeliveryOptionsEnabled":true}

import requests
import re

# отправляем запрос на товар
req = requests.get(
    "https://www.dunelm.com/product/cast-iron-medium-cooking-pot-1000123369"
)
# получаем цену товара
price = re.search('"price":(\d+)', req.text).group(1)
# получаем id товара
sku = re.search('"sku":"(\d+)"', req.text).group(1)
# кол-во товара
count = 1
# формируем дату на получения цены доставки
data = {
    "clickAndCollect": True,
    "skus": [
        {"sku": sku, "quantity": count, "price": price, "clickAndCollectEligible": False}
    ],
    "includeDrivingDistance": False,
    "noDeliveryOptionsEnabled": True,
}
# отправляем запрос на получения цены доставки
req = requests.post("https://ado.dunelm.com/v2/pdp", json=data)

{"response":{"stores":[],"deliveryMethods":{"clickAndCollect":{"available":false,"message":"Unavailable"},"homeDelivery":{"standardToHome":{"cost":9.95,"type":"date","date":"2020-01-16T00:00:00.000Z","deliverOnOrBy":"BY»}}}}}

from w3lib.html import remove_tags