You know how it goes- you go to the till and they ask for your postcode and if you are on their maling list.
I have now started to refuse because it's all about collecting data for marketing- but it also means they are building up a profile of what i buy, sizes etc etc , and when.
I feel it's all getting too much like Big Brother.
When I have refused to give my details the assts look shocked and try to persuade me saying it's so i can be "sent offers".