Instructions:Keep your receipt for any transaction of 8 comparable items or more in Asda. Input the transaction number on the Internet and if your shopping is cheaper (checked by mysupermarket) in tesco, sainsburys or morrisons you get a voucher for the difference plus a penny off each item.
Essentially making Asda THE cheapest supermarket!
Live from tomorrow. See leaflets instore for details.
As an example, if you buy a crate of beer for £10 then check the price and it's £8 in morrisons, you get a unique print-off voucher for £2. Ideal if you see an offer on HUKD for another retailer and can't get there ;)