Sorbet 3 for 2 not priced correctly

Sorbet products on the 3 for 2 are never priced at that. It’s the 2nd time I’ve got home and I’ve ended up paying for my 3rd “free” item because Clicks hasn’t priced the products correctly. The 1st time was hand foam and now body butter. Total price between the 2 is R145. No thanks Clicks!