Having an issue with pre-filling the cart

Hello everyone,

I’ve been following the instructions on the Shopify Developer documentation for creating cart permalinks for my store, but I’m having an issue with pre-filling “province” issue. I’ve followed the instructions exactly as outlined here: https://shopify.dev/apps/channels/cart-permalinks/cart-permalinks

I’ve included a screenshot of my implementation here: https://prnt.sc/CEGhjehrQFIW

However, when I test the link by sharing it with a customer, in the checkout page “province” isn’t pre-filled with the items as it should be. I’ve double-checked my code and everything seems to be in order, but I can’t seem to figure out what’s causing the issue like it seems it is taking “province” according to customer’s current location only no any other parameter is working.

If anyone has any experience with this or could offer any advice, it would be greatly appreciated. Thank you in advance!