Just arrived in the post for me- freeish San Miguel glass. You have to text off to get it- mine took about a week and a half to arrive! ALl you have to do is text
Glass_name_address_postcode to 60300
Terms and conditions can be found:- http://www.sanmiguel.co.uk/download/660mlGlassPromo.pdf
Its not the glass in the image- its more like the stella ones you get in the pub!