I just found this deal and thought I would share it here.
They are offering a free cartridge and £9.00 cashback through Quidco. I have just done this about an hour ago and ordered my free cartridge and quidco has validated my £9.00 :)
Oh and all you need to do is pay £1.99 P&P
Can't knock free money ;)
Sorry P&P is actually 2.99 thanks azza87 ;)