Just an update on this topic. I have since found that the Jacks are not interchangable between different vw models. I have managed to get the correct jack from VW at a cost of £27.50 but it comes without the tools.
As an addition, those of you that prefer a spare wheel will find that once you have inserted it to the wheel storgae area, the polystyrene form that holds the jack and the tools no longer fits over the spare wheel.