Get a large bag of Cadbury's Buttons completely FREE when you download the Shopmium app and sign up for a free account.
1: Download the app: https://www.shopmium.com/uk/referral/397x9g
2: If asked to enter a promo code use 397x9g.
What you need to do:
1: Purchase the item.
2: Keep your receipt.
3: Take a photo of your receipt on the Shopmium app.
4: Scan the product barcode.
That's it, in a few days you'll be refunded by Shopmium for the item.
Hint: With Shopmium you have to purchase the exact item in the listing. Make sure it's the correct size, weight etc. This is all in the offer listing description. Some offers are valid with specific supermarkets only.