Instructions:The blurb from the thomson.co.uk site
""Looking for a summer holiday departing in June or July 2010? If so, book online this weekend and you can save an extra £50 per booking - EXTENDED until Thursday. So what are you waiting for?
Are you fed up with the unpredictable British weather? Are you longing to escape to sunnier shores? Well, to make it easier for you to get away from it all, we are giving away extra discount on some fantastic holidays.
This week, you can save an extra £50 on all holidays departing in June or July 2010. All you have to do is enter discount code 12642 into the promotional code box on the 'payment details' page.
So, book online and in the warmth of your own home, and know that every little detail is being taken care of. ""
...just used it on a booking :)