I don't know if these are limited offers.
Tesco 4 for ã6 (Tesco seem to have made their links not work in forums, this will get you to the page) - http://tinyurl.com/jhd5n88
ASDA offers 4 for ã5 - http://groceries.asda.com/promotion/4-for-500/ls85317
Tesco 4 for ã6 (Tesco seem to have made their links not work in forums, this will get you to the page) - http://tinyurl.com/jhd5n88
ASDA offers 4 for ã5 - http://groceries.asda.com/promotion/4-for-500/ls85317