All you need is their card you can pick up a paper one in store it still works, go to the cafe and show the card and get free coffee ( proper bean stuff) and a biscuit. or cup of tea. all day everyday.
this is not just once its everyday for ever. you can even get it in a takeaway cup they aint small either

you don't have to buy a thing, just walk in and get it!

Have been doing this for ages