Web Scraping Blocked - Using Googlesheets IMPORTXML()

Question

Was hoping someone smarter than me would know how to get around two websites Woolworths.com.au and Coles.com.au that appear to block the use of the IMPORTXML() function.

I am trying to do some personal budgeting and I'm trying to input the price of various products into my spreadsheet. e.g. Toothpaste

Here's what my spreadsheet looks like so far, I am trying to avoid manually inputting the prices of the Woolworths and Coles items

Have been trying importHTML and importXML. =IMPORTXML("https://www.woolworths.com.au/shop/productdetails/238473/colgate-plax-alcohol-free-mouthwash-freshmint","//shared-price[@class='ng-star-inserted']")

I was initially able to get some price data but after about a day it seems to have stopped working (I think they block my sheet)

Pretty tricky to work around so if anyone has suggestions for advanced Googlesheets forums to