Ok this same deal was posted just over 3 months ago. I bought a machine following this offer and have been very pleased with the results.
I was browsing the web and found a website (new to drinks vending) which posted up a couple of weeks ago a code for discount. It appears to be the same code as was posted up before - unsure if the deal stopped in the interim. But in any event this deal is worth mentioning again!
Choose your machine, priced at £79.99, enter the discount code "STU50PO" and it makes the unit £29.99. Colours include ice blue, red and black.
I seem to remember that when the product arrived, it also included a leaflet stating that you will get 20x Mars sachets free (and automatically) when you place your first drinks order.
I highly recommend the machine, coffees are good, don't really use it for tea, but the Mars Chococcino and Mars Latte are absolutely gorgeous! Anyway hope some people take up the offer, it is really good :)