Just a quick update,
I have reported the ebay seller so hopefully action will be taken asap.
Next time I will not be so gullible, I hope others learn from my mistake. In the future when buying the larger sets I will stick to the lego shop and not hunt for bargains that sound too good to be true on ebay!
As for my refund, I will have to wait until 11th to open a case (as that was the latest expected delivery).