Soldato
Oh sorry, I thought you were saying you could do this ratehr than asking if you can. I don't think you can unless you cancel your contract and start a new one.You sign up now for instance £18 a month for 6 months then £36 a month after. Over 12 months equivalent to £27 a month.
After the 12 months can you sign up for another 12 months and get a deal again or are you stuck paying £36 a month.