Tesco say you can only have three of any “product line”. Does anyone know what a product line is? There was some confusion when my husband went last week as he wasn’t allowed parsnip, swede, carrots and potatoes as they are all root vegetables. I’m trying to make some sort of shopping list for this week and my mind is boggling! Are there any seasoned Tesco shoppers who could advise on what you are allowed, please?