Saw this on MSE forum
Go to the link below and type in your name and mobile phone number. You have to answer a question - The answer is The finest Arabica Beans
You'll then receive a text, entitling you to a free coffee!
It does suggest that you are signed up to something or other but the small print tells you to email [email protected]
with STOPBP and your phone number in the subject line. to stop correspondance. Miight as well do this as soon as you get your text.