Just spotted this in my local Tesco, seemed like a good deal to me, although i'm sure fireworks were never this expensive when i was a boy!
What are Clubcard Prices?
Tesco rewards its Clubcard members with exclusive deals in-store and online. To get Clubcard Prices, scan your Clubcard app or tap your Clubcard/key fob at the checkout. If you're shopping online, you'll have a Clubcard number on your account already, so you get Clubcard Prices automatically. More info from Tesco
Tesco Delivery & Returns Information
Delivery prices vary depending on the delivery slot you choose.
The minimum basket value is £40 for home delivery, and £25 for Click + Collect
Unwanted items can be returned to any Tesco Store (excluding Express stores). Simply bring your delivery note to get a replacement or refund. For perishable food items, you need to return these within their its use-by date.