There's an error with this listing on the Smiths City website. Link here
Normal price varies between $6-10 depending on the store.
Place an order and see what happens. Unfortunately you cannot pay online when choosing click and collect.
Here's a link for store locations
Didn't want to post in deals in case it doesn't work for people.
I added 10 packs to my cart with $10 shipping. = $10 overall cost. See what happens.