When I return something to a shop under thier returns policy (28 days/receipt etc), they print me out a new receipt and ask for my name, address and signature.
I really don't want to do this and suspect it is for marketing purposes and nothing to do with legallity. In the shop this happened in today, I ask why I was obliged to do this, but girl in shop could not tell me.
What I usually do is write down a made up address, but can I refuse altogether and they still have to do the refund?